The Brainliest answer is 40x-72.
8*5=40(add the x because of the variable on the coefficient)
8*9=72, the 72 being negative because of the sign in front of it.
Answer:
84
Step-by-step explanation:
3 times 4= 12
12 times 7= 84
we have the formula

For T=2 seconds
substitute in the given formula
Step-by-step explanation:
congratulations happy for you