Find the sum or difference. give your answer as a mixed number in simplest form. -2 - (-3/8)

give explanation if you can please

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Which of the following is the result of expanding

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?