Answer:
1. 130
2. 0=120
Explanation:
1. 7*10+9*7-3
pemdas
70+63-3
130
2. kind of hard to explain but this is what i got
(1+9) + (1+4)*2 = 140
pemdas
10+5*2=140
10+10= 140
20=140
you could subtract at this point...?
140-20=120
0=120
not much context but this is what i got