1/2(a-b)+c if a = 7/10, b = 3/5, and c = -1.9

Sandy works at a clothing store. she makes $7 per hour plus earns 15% commission on her sales. she worked 75 hours over the last two weeks and had a total of $2,566 in sales before taxes. which of the following is closest to how much she will earn in hourly wages and commission for those two weeks?

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Arandom number generator is used to model the patterns of animals in the wild this type of study is called