Kara used the linear model y=45,000+ 0.05x to predict her total salary from achieving total sales of x.
Intercept the slope and y-intercept in terms of her salary and sales

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

What is the value of x in the equation 2(x-4) = 4(2x + 1)?