Me with this and say the answer asap

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red