What is the vertex of y=-5(x+3)^2+5

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details