15p^2q^2 because you multiply the coefficients and the vaiables. 3x5 is 15, pxp is p^2, and qxq is q^2
I^2 = -1
so,
-99 = -1*99 = i^2*99 = 99i^2
Answer:

Step-by-step explanation:
The point-slope form of an equation:

m - slope
We have

Substitute:

It is 3.5, because anything inside an absolute is always positive.