Solve the system of linear equations by graphing. y=x−6 and y=−x+10

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Sketch one cycle if the cosine function y=2cos2theta