Select all pairs of ratios that form a proportion. 2/3, 10/5
3/4, 30/40
36/30, 18/15
4/5, 28/35

Please help.

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

When are two distinct non vertical lines parallel

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares