10)So plug in the value of a + 3 into where the x of the equation
r(a+3)= 6 6 *you can simply if you want*
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(a+3)8 distribute=24 + 8a
11) f(-2)=n whenever you have f with a # inside the parenthesis know that they're giving you the x value so f(x)= and on this side is the y value but on tables y value are titled as f(x). So f(-2) is 3
12)Instead of giving you the x-value they gave you the y value this time "=9?" on the bottom. So you go to the f(x) column and find 9 and the # next to it which is 0