Three more than four times a number is twenty-three. n=?

If you answer 2+2 you will get over 80 points

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)