Which expression is equivalent to −1/4x + 1/2 ? −1/4 (−x + 1/2) 1/4 (−x + 1/2) −1/4 (x + 2) 1/4 (−x +2)

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25