Answer:

Step-by-step explanation:
The bill = $190
Less flat fee = 25
Work done = $165

Using the formula for the circumference of a circle:
2 x 100 x 3.14=628ft
Answer:
This equation has no real solutions, because the discriminant is less than zero.
Step-by-step explanation:
no solution
Answer:
d) x+y = 4
Step-by-step explanation:
(−1, 5) and (1, 3)
y = mx + b
m = (3 - 5) / (1 - (-1)) = -2 / 2 = -1
b = y - mx = 3 - ((-1) x 1) = 4
equation: y = -x + 4