Question

I really need help with this can you please answer the questions and say how you came up with it please I'm begging you please show work answer all please

Answer 1

9)
3×(30)+20=110 no

4×(5)^(2)=100 yes

0.5×((5×39)+5)=100 yes

(12−2)^(2)=100 yes

10)
A=500(1+0.03)^2
A=530.45
The amount of compound interest
I=A-P
I=530.45 - 500
I=30.45