The average change per hour is B 40.7
Answer:Oh, be very careful about the "$87."
Let the dryer cost x.
Then, the washer costs (x+87)
Together, they cost (x) + (x+87) = 787
2x+87 = 787
2x = 700 [subtract 97 from both sides]
x = 350 [divide both sides by 2]
The dryer cost $350.
Step-by-step explanation:
Quick answer A <<<<
All horizontal lines have an equation of
y = k where k is a number. k is the y intercept.
Here are a few lines drawn for you.
y = 3
y = 1
y = - 1
y = - 2
In y = ax + b the term ax disappeared. The graph shows that x is not zero. It has many values. So the m must be zero.
A <<<<answer
The answer is -2 each time witch means it's B or D