Answer:
B
Step-by-step explanation:
Add whole numbers first 3+3+3= 9
Convert fractions to have same denominators 4/12+3/12+5/12= 1
Add both numbers together 9+1= 10
Let's assume
independent variable is x
dependent variable is h
A linear function h models a relationship in which the dependent variable increases 1 unit for every 5 units the independent variable decreases.
so, we can use formula of linear function
where
m is slope
now, we can plug values
The value of the function at 0 is 3
so, at x=0 , h=3
we can use it and find b
now, we can plug back
now, we can draw graph
Graph:
69.9 is exactly 3 standard deviations away, which means that 78.9 is +3 (more than 3) standard deviations
So the answer is 78.9
First and third one would work