Match each equation to the property it illustrates. associative property (2 + 6) + 3 = 2 + (6 + 3) identity property of addition 2(3 + 7) = (2)(3) + (2)(7) identity property of multiplication 1 8 x 4 = 4 *8 distributive property 9 + 0 = 9 commutative property (16)(1) = 16

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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?