Answer:
d
Step-by-step explanation: if you pay attention to this answer its for points thanks
Pretend these are coordinates that you can use to find the slope of the line.
(10, 40) and (15, 60). Fit these into the slope formula to find the slope of the line you are looking for:

and the slope is 4. Now use one of the points and the slope of 4 to solve for b, the y-intercept:
40 = 4(10) + b so b = 0. The equation of the line then is y = 4x + 0 or just
y = 4x
Answer:
use khan academy
Step-by-step explanation:
khanacedemy.com
dont cheat dude
You need to know the area if you're going to
1st selection: cover the surface of the dartboard.
Answer:
80%
Step-by-step explanation:
from $25 to $45
$45/$25 = 1.8
$25 x 1.8 = $45
therefore, the increase is 80%