A wedding cake is made of three circular tiers, as shown below. The cake decorator is going to put one ring of frosting around the circumference of each tier. How many inches of frosting will the cake decorator need? Use 3.14 for pi and round to the nearest whole inch.

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10

the one on the bottom left

step-by-step explanation:

all of the other ones have a specific pattern

its not b

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).