Which expression is equivalent to the expression below? select all that apply. –2/5(15 – 20d + 5c) a. –30 + 40d – 10c b. –6 + 8d – 2c c. –2c + 8d – 6 d. 6 – 8d + 2c

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Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

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?