Replace the x with 2: f(2)=2*2+7=4+7=11
replace the x with 7: f(7)=2*7+7=14+7=21
The answer you are looking for is C my friend
The answer is to your question is x=-6
<em>Answer:</em>
94.25m
<em>Explanation:</em>
×
Solve for x.
(cross multiply & divide)
4.5 × 19.5 = 282.75
282.75 ÷ 3 = 94.25