Dule works as a hairdresser and only earns money on tips and commission. She makes 15% commission on the total amount of shampoo that she sells to each customer.
After Laura's haircut, she bought $30 worth of shampoo, making her total bill $70. Laura gave Julie
an additional 20% tip on the total bill for Julie's outstanding work.
How much money did Julie make from the commission and tips from Julie? (2 points)

entering that problem on the tube might get you an answer

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

answer: your answer is a

step-by-step explanation:

classify each pair of angles as alternate interior, same-side interior, or corresponding angles.