What is the measurement for angle JKL. (2x+5) and (3x-6)

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?