The ratio of adults to children at a picnic is 4 to 5. the total number of people at the picnic is between 20 and 30. write an equivalent ratio to find how many adults and children are at the picnic. show the steps!

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?

Which of the following scenarios demonstrates an exponential decay

Taina went to the toy store and spent $21.05 on a board game, $2.75 on coloring books, and $13.22 on a model airplane. about how much money did taina spend in the toy store?