At Cell 4U it would cost $250 with accessories
At Data House it would cost $245 with accessories.
He should buy a phone from Data house because it will be 5 dollars cheaper
Note that 6 inches is half a foot, so if its 4ft. then 1/2 of a foot goes in 8 times which means that the scale factor is 8. :)
The answer is c. You double the number for finding radius
I think you're missing a bit of the question. If her savings can be modeled by x...?
The slope is 4 and the Y-Intercept is 0.