How to write the decimal 0.25 in words

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?

Aline passes through 3,7 and 6,9 what equation represents the line

What would the rule be for the reflection of y=-3