To know the percentage of carbohydrates that Osvoldo ate from grains with respect to the total, we simply have to divide the amount of carbohydrates he got with the grains by the total
55 / 220 = 0.25
then to express it as a percentage this number has to be multiplied by 100
Janice deposited $750 and a savings account earns 3.5% simple interest. r = 3.5% = 0.035 I = $750 * 0.035 I = $26.25 Answer: Janice has earned D ) $26.25