Hello !
Answer:

Step-by-step explanation:

Answer:
<h2>
<em>–</em><em>5</em><em>0</em></h2>
Step-by-step explanation:
1-81-1+31
-80-1+31
-81+31
-50
Hopefully this helps, I have tried to write out all reasoning
<span>Her monthly allowance is $30.</span>
Answer:
<u>39.28cm^2 </u>
Step-by-step explanation:
Simple work out the area of a circle and halve it.
3.142xr^2
3.142x5^2 = 78.55 cm^2 (Full circle area)
Now we must halve that answer to get the semicircle.
78.55/2 = 39.275 cm^2
However, we need it to 2dp. Therefore the answer is 39.28cm^2