Step-by-step explanation:
<u>The formula for the area of a circle:</u> 
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<u>Given:</u>
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<u>Substitute 8 for r (radius):</u>
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<u>Solve:</u>
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Answer:
1 algebraic expression
Step-by-step explanation:
2. constants
43.5 is 783 divided by 18 783 ÷ 18 = 43.5
Answer:
1. a (s^7)
2. b (g^11)
Step-by-step explanation: