students are selling grapefruits and nuts for a fundraiser. the grapefruits cost $1 each and a bag of nuts cost $10 each. they sell 100 items and made $307. how many grapefruits did they sell?

What is the probability of rolling a single die greater than 4

The surface area of the triangular prism is .

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years