Answer:
7
Explanation:
8p+3q-18
Substitute in our numbers. 8(1/2)+3(7)-18
Multiply. 4+21-18
Add. 25-18
Subtract. 7
Question: 8p+3q-18 when p=1/2 and q=7
8p*1/2=4
3q*7=21
21+4=25
25-18
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