Tony made $ 276 for 12 hours of work. at the same rate, how many hours would he have to work to make $ 161 ?

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

what level of math? also i don't need to be paid if i can you.