You own a small jewelry store. You increase the price of the jewelry by 125%. Use a model to
estimate the selling price of the jewelry. Then use a
calculator to find the selling price.

plzzz help me

Simplify the expression. -2/5(10+15m-20n)

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.

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8