Answer:
2.0
Step-by-step explanation:
x = age
y = average systolic blood pressure
x₁ = 40 years old, y₁ = 110 systolic blood pressure
x₂ = 50 years old, y₂ = 130 systolic blood pressure

∴ Slope of the regression line is 2.0
24 times 2 pencils each student is 48 then you divide by 8 to get the number of packages needed which is 8.
-11/2 or -5.5
-4
0
4/5 or 0.8
1.5
3
Ok sweetie what is number seven i can answer it if i see it
Answer:
sx-rx
Step-by-step explanation:
Since s, r, and x are unknown variables, you just multiply them. s × x = sx.
r × x = rx. then when you put the together, it will look like this:
sx-rx