What is the mid point between the two end points (8, 11) and (-15, 23)?

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

unless if u could do my questions, if not i wouldn't want to

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i