please helpppp I will give you a brainleist !!!!!!

Answer:
Hope this helps
Step-by-step explanation:
4. 10^2
5. 64 / 14 * 9 + 8
64/126+8
8 64/126
8 4/9
6. 1.762 x 10^3
Answer:
I am confused with #5 but the rest are solid and checked
Step-by-step explanation:
#4 (A)
10*10=100
#5 (97)
64+4*4+3*3+2*2*2=
64+16+9+8=97
#6 (1.762 × 103)
#7 1070