Write 12 as a product of primes. Use index notation when giving your answer

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation