Answer:
The second one "Ben runs 3 miles a day"
Step-by-step explanation:
D. y=mx+b. m being slope and b being the y intercept. so the equation for the line is y=3x+2 and to be parallel your m must be the same number so D. 3x
Answer:
SO is this a question????????????????/
Step-by-step explanation:
This is kinda confusing :/
Answer: 10
<u>Step-by-step explanation:</u>
varies directly means: 
Step 1: solve for k ⇒ 
Step 2: plug in the given value and k to solve for the missing value: 
42(5) = 21(x)

2(5) = x
10 = x