there were 1200 cards in a box i out of 5 of them were red colour 40 percent of them were green colour and rest were blue and yellow colours cards if there were 240 blue colour cards how many cards were of yellow colour

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?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?