Answer:
x=-3
Step-by-step explanation:
7x=-13-8
7x=--21
x=-21/7
x=-3
points or brainleist please

(prounounced "y bar") is the mean of the y values
Add up the y values to get
5+7+10+15+18 = 55
Then divide by 5 (because there are five y values) to get
55/5 = 11
Therefore,

The answer is choice C
Answer:
17.4076456756
Step-by-step explanation: