A1 = 35x+25
Good guys = 40x
35x+25 = 40x
subtract 3x x from each side
25 = 5x
divide each side by 5
x = 25/5 = 5
so 5 hours they would be the same cost, anything over 5 hours and A1 would be better
so X>5 for A1 to be the better price
Answer:
An expression equivalent to 5 (x + 10) is <em>5x + 50.</em>
Answer:
A line passes through the points (-4,1) and (-3,3). This line can be modeled by the equation y
Standard Form of the circle:

For y:
y=3 (+/-)

For x:
x=