Answer:
30
Explanation:
a(b-1)+(bc)/2
3(6-1)+(6*5)/2
3(5)+(30)/2
15+30/2
15+15
Hey there!
a(b - 1) + bc/2
= 3(6 - 1) + 6(5)/2
= 3(5) + 6(5)/2
= 15 + 30/2
= 15 + 15
= 30
Therefore, your answer is: 30
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
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