Suppose cos(a)=4/5 use the trig identity sin2 (a) + cos2(a)=1 to find sin(a) in quadrant Iv round to ten thousand

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?