Step-by-step explanation:
The associative property for multiplication: <em>(a · b) · c = a · (b · c)</em>

A racquetball is 40 feet long and 20 feet wide and 20 feet high
Answer:
C. Correct, because for the work to be carried out in 5 days, 40 workers are required.
Step-by-step explanation:
The job requires 10 people to work for 20 days. That's 200 worker-days.
In other words,
days × workers = 200 or
workers = 200/days
To get the work done in five days,
workers = 200/5 = 40.
You must hire 40 workers.
B. and D. are wrong. To get the job done in seven days. you must hire 200/7 = 29 workers.
Answer:
angle FGE = 36
angle GEL = 72
and angle GFH = 144
Step-by-step explanation:
well you know that angle GEF = 180 -2x
and that angle GFE = 180 -4x
so all the angles in triangle GEF must add to 180
so you have 180 = 180 -2x + 180 -4x + x
180 = 360 -5x
5x = 180
x = 36
so angle FGE = 36
angle GEL = 72
and angle GFH = 144