Simplify: 5x - 6y + 4x
A) 9 x - 6 y
B) 3 xy
C) x - 6 y

If ac = 12 and ab=7 is it possible that bc =10

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it. how many multiple-choice questions are on the test?

Icould really use some with this question.