1. For his birthday, you buy your dad a package of tennis balls that come in a cylindrical container with diameter 6.9 cm and height 20.6 cm. You cover
the container in wrapping paper before giving it to him. What is the area
of the wrapping paper? Assume there is no overlap. Round to the nearest
whole number.
A. 447 cm B. 521 cm
C. 1192 cm D. 3111 cm

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

add a screenshot of the graph so i can .

step-by-step explanation: