3x+2/x-2=3x+1/x+2 equação fracionaria
como resolve isso?

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 is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

If the scale factor between two circles is 2x/5y what is the ratio of their areas?