Randy is 8 years old. His brother is twice as old as Randy. Randy’s sister is three years younger than Randy. a. Write an expression to represent the age of Randy’s brother. b. How old is Randy's brother? c. Write an expression to represent the age of Randy’s sister. e. For this problem, what does the expression 8 + 5 represent?

HELP PLS

When turned about its axis of rotation, which shape could have created this three-dimensional object?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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.