55.72 how many times greater is the digit in the tens place than the digit in the ones place

The table represents a linear function. what is the slope of the function? –6 –4 4 6

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?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2