If the mix ratio for a certain chemical is 1: 6 when it is mixed with water (chemical: water), how much water would be mixed with 1/2 gallon of the chemical.

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

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)

Asequence is a function whose is the set of natural numbers