Alex buys 7 dvds . each dvds costs $12 .if alex receives a $4 discount on each dvd , what is the total amount of money alex spends? write an expression that matches the words.

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

What is the y-intercept of the line given by the equation

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)