Answer:
Jewel is 7 years old
John is 1 year old
Dave is 17 years old
Step-by-step explanation:
From the question we are told that:
Jewel age is 
John age 
Dave's age a Year ago

So that Dave.s age this Year could be

Simplifying Equation for Dave's age we have





Dave is 17 years old
Therefore
Johns age is



John is 1 year old
Answer:
A. The r²-value of the linear model is greater than 0.977
Step-by-step explanation:
A P E X
Answer:
first option
Step-by-step explanation:
you multiply each coordinate per 4
Answer:
B
Step-by-step explanation:
This answer shows values of -2, and less than -2