He do u do question 2 step by stem. i need fast

For this question you really have to see how much information you can get out of just knowing the endpoints of the diameter.

The y value is the same for both endpoints of the diameter so we know that the given diameter is a horizontal line that is 8 units long because 4 - (-4) = 8, and the radius is 4.

We also know that the center of the circle is the midpoint of the endpoints of the diameter. Halfway between -5 and -5 is -5 so the y value of the midpoint is -5. halfway between -4 and 4 is 0 so the x value of the midpoint must be 0. Thus the center of the circle is (0,-5)

Equation of a circle:

(h,k) is the center of the circle and r is the radius. If you plug in the values of each of these variables, you get the equation of the circle:

Step-by-step explanation:

1) To figure out how much they'll pay, we have to figure out how much 5% of the refridgerator cost is. To do this, we multiply "$1850" by 5% or 0.05.

2) 1850 x 0.05 = 92.5, or $92.50

3) Since it's a discount, subtract $92.50 from $1850.00

4) They'll pay $1757.50