(85 + 84 + 78 + x) / 4 = 86
(247 + x) / 4 = 86
247 + x = 86 * 4
247 + x = 344
x = 344 - 247
x = 97 <=== her score was 97
P(x) = 25^2 -24x + 615
P(8) = 25(8 squared) -24(8) +615 = 2023
Can someone help me with my most recent question
The mid point would be (1,25.5)
