What is the perimeter of the coordinates x(-4,2) y(2,10) z(2,2)

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

An octagonal prism has jow many lateral faces?

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount