Mario is x years old. In 7 years, he will be 19. Which equation can be used to determine Mario’s present age?

A.x-19=7
B.x-7=19
C. x+19=7
D. X+7=19

Alright so I got a 2/5 (I hate this bot) Here are the right answers.

1.x + 7 = 19
2.h + 334 = 512
3.p − 13.32 = 25.70 ; ; there was $39.02 in the piggy bank.
4.n + 5 = 13 ; Alexa popped 8 balloons
5.w − 8.8 = 95.3 ; the water level of the dam last month was 104.1 meters.

These are the right answers have a great day yall 😘

A. x-19=7

Maria has to spend 5 1/2 hours to finish her community service program in a community health clinic. Last week, she was able to spend 3 3/4 hours. Which equation can be used to determine the number of hours, h , that Maria still needs to spend to complete her service program?

A. h+ 5 1/2= 3 3/4
B. h-3 3/4=5 1/2
C. h- 5 1/2=3 3/4
D. h+3 3/4=5 1/2

C. h- 5 1/2=3 3/4

You have p dollars in your piggy bank. You spent $13.32 to buy a toy, leaving you with $25.70. Which equation should be used to determine the amount of money you had in your piggy bank before buying the toy? How much money was in the piggy bank?

A. p − 25.70 = 13.32; there was $12.38 in the piggy bank.
B.p − 13.32 = 25.70; ; there was $39.02 in the piggy bank.
C.p + 13.32 = 25.70; there was $12.38 in the piggy bank.
D.p + 25.70 = 13.32; there was –$12.38 in the piggy bank.

A. p − 25.70 = 13.32; there was $12.38 in the piggy bank.

Krista and Alexa played balloon darts in a school fair. Krista popped 5 balloons and Alexa popped n balloons. Together, they popped a total of 13 balloons. Which equation can be used to determine the number of balloons Alexa popped? How many balloons did she pop?

A. n + 13 = 5; Alexa popped 8 balloons.
B.n − 5 = 13; Alexa popped 18 balloons.
C.n + 5 = 13; Alexa popped 8 balloons.
C.n − 13 = 5; Alexa popped 18 balloons

C. n + 5 = 13; Alexa popped 8 balloons.

Due to excessive heat, the water level in a dam decreased by 8.8 meters last month. Now, the water level is 95.3 meters. Which equation represents the water level, w , of the dam last month? What was the water level last month?

A.w + 8.8 = 95.3; the water level of the dam last month was 86.5 meters.

B.+ 95.3 = 8.8; the water level of the dam last month was 104.1 meters.

C.w − 95.3 = 8.8; the water level of the dam last month was 86.5 meters.

D.w − 8.8 = 95.3; the water level of the dam last month was 104.1 meters.

D.w - 8.8 = 95.3; the water level of the dam last month was 104.1 meters.