Use the unit circle to find the value of sin ³π/2 and cos ³π/2

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

Average acceleration: i have no idea how to do this.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers