Ricardo bought 3 pounds of gummy bears for $7.77. What is price per pound for the gummy bears?

Find the values of y: 3y^3(y^2+ 2/3y)=0

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

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)