Ln cos2y + xy + 5x² = 5, find dy/dx. HELP PLEASE!!!

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What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

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?

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition