There are 4 semicircles, each radius is 8cm, so we get the total areas of these semicircles: 4×0.5×

π
and the square area: 16²
so the total area of figure: 16²+4×0.5×

π=256+128π
U= 9 divide by 6
U=9/6
=3/2
1.6666666666666... because 8 divided by 12=1.6666666666...
Step-by-step explanation:
the explanations are in the image
Hi there!
Let's solve this inequality step by step!

First collect the terms on the left.

In order to solve, we must isolate r. Therefore we need to bring them all to the left. Our next step will therefore be to add 3r to both sides of the equation.

Finally we need to divide both sides of the equation by -1. Because we divide by a negative, the sign flips.

Hence, the answer is r < -3.
~ Hope this helps you!