The formulas:

Expand the expression:

Plug the values into the expression:
Answer:
A
Step-by-step explanation:
28) ANSWER: x=5
Because 5*5=25.
29) ANSWER: x=4
3x^2=48
Divide both sides by 3.
x^2=16
x=4
Because 4*4=16.
Divide the length value by 1000
Answer:
here are random times
Step-by-step explanation:
15min
5min
muscular
burpies 5 min
moderate
25mins