Answer:
65
Step-by-step explanation:
let's place 9 in place of p and 4 in place of q. I will use a star in place of that symbol for the sake of my convenience having to look for it, apologies.
68% will be 1 standrd deviation either side of the mean so a reasonable estimate will be (25*0.68) / 2 = 8.5
2x - 3y = 8
Subtract '2x' to both sides:
-3y = -2x + 8
Divide -3 to both sides:
y = 2/3x + 8/3
or
y = 2/3x + 2 2/3
Answer:
x+2
Step-by-step explanation:
x and 2
And means add
x+2