How to solve 2^(log(2)3+ log(2)5

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

The high temp today was 62°. when nighttime comes, the temp will drop 40°. by 4am the temp will drop an additional 40°. what is the temp at 4am?

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9