Two coins have a radii of 3 cm and 1 cm the smaller coin rolls along the circumference of the fixed larger coin until the smaller coin returns to its original position. how many revolutions has the small coin made?

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?

Write the expression as a single natural logarithm. 2 in a - 4 in y

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr