1. Martha can complete 15 activities a day at summer camp. She can choose between crafts or sports Part A: Define two variables and create an equation to represent the situation
Part B:what are three possible combinations of crafts and sports that Martha can do?
So I can do part a and b but I am having trouble on the graphing part, it only goes to 7 but that is not enough??? HELP!?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Jim had 15 minutes to do 5 laps around his school what would his time be

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x