3.25(4)+2(6) --plug in values
13+12 --multiply
$25 --answer
Subtract 3 first so it would be 7x=15
then divide by 7 so x would be approximately 2.14
the answer is D. y≤ -2x + 2
take x=2
then (-2 x 2) + 2
⇒ -4 + 2 = -2
F(x)=10-16/x
f'(x)=16/x^2
f'(c)=16/c^2
f(8)=10-16/8=10-2=8
f(2)=10-16/2=10-8=2

4∈[2,8] is the required point.