7out of 10 students got full marks on their test, calculate the angle you would use in a pie chart to show this

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2