Answer:
The answer is C.
Step-by-step explanation:
The first line's slope is 2x and it y-intercept is 4. The second line's slope is simple 1x or just x (they are both the same).
It will take 15 seconds. You would multiply 50 by 7 and get 350. Then multiply 7 by 2 getting 14 seconds. Split the 2 seconds making it one second and you'll get 375 miles
Answer:
Number 3
A= -6
B= the third one
4. for this one, just do -1, 0, 1, 2, 3, 4
Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x
-x = 16+7
-x = 23
x = -23