15% of a mass is 45 g. calculate 20% of the mass

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay