Jim, carla and tomy are members of the same family. carla is 5 years older than jim. tomy is 6 years older than carla. the sum of their 3 ages is 31 years. how old is each one of them?

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?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.