At the end of the day, vegetables at the Farm Market sell for $2.00 a pound, and a basket costs $4. If Charlene has $10 and wants to buy a basket, how many pounds of vegetables can she buy?

Yo y do yall have 2 stars that means yall wrong bro

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?