Respuesta :

Amphitrite1040

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:)

Yang100

Answer:

30

Step-by-step explanation:

a(b-1)+(bc)/2

3(6-1)+(6*5)/2

3(5)+(30)/2

15+30/2

15+15

30