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?

Don't wanna be impatient but its been over an hour and no one has helped me. :/

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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

Thank you so so so much @Damon, ur a lifesaver. :D

You are welcome.

..

Is there anything else you need help with?

Yes!

Which of these is LEAST LIKELY to determine credit worthiness?
Responses
A length of employmentlength of employment
B payment historypayment history
C personal health historypersonal health history
D personal educational backgroundpersonal educational background

can you answer this for me?

The answer is C - personal health history is least likely to determine creditworthiness.

Which of these BEST describes the purpose of a credit report?

Responses
A It helps lenders decide whether or not to loan a person money.It helps lenders decide whether or not to loan a person money.
B It prevents a person from putting their money in a bad investment.It prevents a person from putting their money in a bad investment.
C It alerts consumers when products they use are being recalled by a company.It alerts consumers when products they use are being recalled by a company.
D It determines whether or not a person will have a place to live.