Erica could do 10 math problems in 20 minutes. Penny could do 15 math problems in 25 minutes. If they worked together, how many minutes would it take Erica and Penny to do 30 math problems?

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Point m is located at (-4, -6). what is located 4 units from point m? ( its on a coordinate plane by the way. )

The triangle rst, rs = 65 and st = 60. which equation could be used to find the value of angle s?