Given 1 in=2.54 cm, How many centimetres are in a foot? ( Write you answer in 3 significant figures. e.g..:2.54

30.48 centimeters

Step-by-step explanation:

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

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it