X + 8 = 20 How would I do this?
A.
Add 8 to both sides

B .
Multiply both sides by 8

C .
Divide both sides by 8

D .
Subtract 8 from both sides

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)

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?