A tablet computer costs $399. A person pays $433.91 in the store. What is the sales tax? 8.25%
8.75%
9.25%
9.75%

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10