Which of the following statements contain a variable? check all that apply. a. the number of people added to the group. b. half the area of the roof. c. sixteen feet long. d. she ran 40 yards

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

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.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827