Which of the following would be cos 0? A 3/4 28 21 0 3 B o 4/3

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)

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n