Find sin (A)!! help for a quiz

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Explain how you can use the associative property to evaluate (7x50)x4.

What is the measure of angle 1? a.28 b.152 c.168 d.64