A stereo costs $418.70, including 6% sales tax. How much was the sales tax itself?

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?

10 points? me . its important ‼️‼️

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a