Which are equivalent expressions? check all that are true. (a + 3b) · 3 = 3a + 9b a + 3b · 3 = a + 9b a + b · 3 = 3a + 3b a + 3b · 3 = 3a + 6b a + b · 3 = a + 3b

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.