A recipe calls for 2/5 cup of sugar for every 4 teaspoons of vanilla. how much sugar should be used for every 1 teaspoon of vanilla?

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?

3/4 = c/36 i need with this fraction proble.

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.