Squares ABCD and EFGH share a common center on a coordinate plane, as shown in the figure. is parallel to diagonal . The number of lines of reflection about which the combined figure can reflect onto itself is

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

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?