You have decided to purchase a new computer system. after researching the cost and features of different models of computers, printers, and monitors, you have narrowed your choices to the following:
computer: dell, asus, lenovo
printer: epson, hp
monitor: samsung, lg
determine the number of possible computer system combinations that you can purchase.

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.

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

286 divided by 457.6 what is the quotient?