Determine the type of solution for the equation.
-4x - 7 + 4x - 12 =90

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Which shows a reasonable estimation for 124% of 42 using the distributive property?