Answer:
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Step-by-step explanation:
use a equation calculator it really helps
Answer:

Step-by-step explanation:
To solve this problem, we can use the area of a circle formula:

<em>A = area</em>
<em>r = radius</em>
Lets plug the values into the equation:
Calculate 
Multiply
and 9 together

The area of the truck wheel is 
Answer:
d
Step-by-step explanation:
f(3)=5(3)²-7(4(3)+3))
=45-105
= -60
Answer:
91 hours
Step-by-step explanation:
Add 12 to itself 8 times and then add 7 once
Answer:
x =2, The function g(x) = g(2) = 1