The biology class has a lab every 4 days. the earth science class has a lab every 3 days. on which day do both classes have lab

Aline parallel to a triangle's side splits ab into lengths of x - 5 and x + 2. the other side, ac, is split into lengths of x and x + 12. what is the length of ac? a) 12 b) 24 c) 36 d)

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}