Answer:
Step-by-step explanation:
1) 8 * (9+1) = 80 / 2^2 = 80/4 = 20
2) (5)^2 - 15 = 25-15 = 10
3) 28-3(4) + 9 = 28-12+9 = 25
1. 20
2. 10
3. 25
I am not the best at these, so I did them all on ma th way. Hope you don't mind...
