X2 + y2 + 4x – 2y = -1 The equation of a circle in the xy-plane is shown
above. What is the radius of the circle?
A) 2
B) 3
C) 4
D) 9

1) is right

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

15.36 per mile

but forgot to round

i am pretty sure

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.