The map of a walking trail is drawn on a coordinate grid with three points of interest. the trail starts at r(−3, 2) and goes to s(2, 2) and continues to t(2, −5). the total length of the walking trail is units.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?