# Math

So this is a math quiz I took a few months ago and they said I can redo it, but I have to explain why the correct answer is correct... And idk.

Which equation represents 15 more than r is 61?

The answer is r + 15 = 61 but idk why?

What is the value of 4^2 -2 (3 x 5 + 1)

The answer is -16 but idk why?

What is the value of 7(10 - 2^3) + 8 % 2

The answer is 18 and idk y.

The empire state building in NY is 1,250 feet tall. It has 103 floors. Round to the nearest whole, What is the height of each floor?

1. 👍
2. 👎
3. 👁
1. Don't wanna be impatient but its been over an hour and no one has helped me. :/

1. 👍
2. 👎
2. Homework Posting Tips

Please be patient. All tutors are volunteers, and sometimes a tutor may not be immediately available. Please be patient while waiting for a response to your question.

1. 👍
2. 👎
👤
Ms. Sue
3. well what is 15 more than r?
it is 15 + r
and it says 15 + r is 61

4^2 = 4*4 = 16

3 * 5 + 1 = 15 + 1 = 16
2*16 = 32
then
16 - 32 = -16

7(10 - 2^3) + 8 / 2
2^3 = 2*2*2 = 8
10 - 8 = 2
7*2 = 14
8/2 = 4
14+4 = 18

1. 👍
2. 👎
4. Thank you so so so much @Damon, ur a lifesaver. :D

1. 👍
2. 👎
5. You are welcome.

1. 👍
2. 👎

## Similar Questions

1. ### Math

Hi I did a quiz today it said I got A 5/9 but it did not show me the correct answers or the ones i missed so if it could be possible that someone could the answers so I could see which ones I need to fix please help me I just came

2. ### Connexus math

Hello everybody. I have test answers to the connexus quiz on 7th-grade math. Here They are. 1.C 2. D 3.A 4.B 5.B 6.A 7.A 8.D Quiz is on Wednesday. Ciao!

3. ### Pre-Algebra

Two months ago, the mean daily rainfall in a local city was 9.4 cm. The mean absolute deviation was 3.5 cm. Last month, the mean daily rainfall in that city was 11.5 cm, and the mean absolute deviation was 1.6 cm. Which statement

4. ### Math

A math quiz is made up of 5 multiple choice questions, each with 4 possible answers. How many possible sets of answers are there?

1. ### finance

Suppose we hold a forward contract on a stock with expiration 66 months from now. We entered into this contract 66 months ago so that when we entered into the contract, the expiration was T = 1T=1 year. The stock price\$ 66 months

2. ### Math (connexus)

has anyone done the math quiz for unit 5 lesson 5 for 7th grade because i need help

3. ### Apex personal finance

Mack opened a CD 10 years ago at an interest rate of 7.8% compounded monthly. According to the rule of 72, when did she have half as much money as she does now? A. About 9.2 years ago B. About 4.6 years ago C. About 3.9 years ago

4. ### math

i need help on math 6 B rectangular prisms and volume quiz part. 1 anyone got time i would appreciate it.

List and briefly outline the six different periods into which the Paleozoic era is divided. The six periods: 1:Cambrian, which was 545 million years ago. 2:Ordovician, which was 490 million years ago. 3:Silurian, which was 445

2. ### Math

Math quiz part 1 and part 2 for Circumference and Area of a Circle Connexus need help

3. ### Math 7 A

I need help on math 7 a Lesson 4: Adding and Subtracting Rational Numbers Essential Math 7 A Unit 4: Operations with Fractions Quiz.

4. ### Math

There is a 60% that your math teacher will give a pop quiz tonight and, due to the fact that you have a soccer game, there is an 85% chance you will not be able to do your math homework. You decide that you will do the homework if