How to solve 7( 2x + 2 ) -9 ( -1 + 6x )

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Kerion has a beaded necklace business. she can make 12 necklaces is 2 hours. how long will it take her to make 9 necklaces?

What is the difference between a linear interval and a nonlinear interval?