(7) A dilation has been performed on triangle ABC. If A(6,12) and A' (2,4) what was the scale factor?

Can any one me with the answers to these questions asap?

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?