Ethan bought a printer on sale for $59.99 and a jump drive for $6.99. the sales tax on the total was $5.36. Ethan gave the sales person four $20 bills. how much change did Ethan receive?

7.66

Step-by-step explanation:

Add up the total cost, the prices of the items and the tax

59.99+6.99+5.36 =72.34

He gave the sales person 4*20 = 80

Subtract the cost from the  money paid

80 - 72.34 = 7.66

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

51840000 cm 2

step-by-step explanation: