Estimate v130 to the nearest integer.

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

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?