Answer:
Step-by-step explanation:
5.
12x-7
12 x 4-7
48-7=41
answer-41
6.
(4 to the power of 2 =16)
16 divided by 8=2
answer-2
7.
5(1) + 3(7)-1(to the third power)
exponents first-1
multiplication
5x1=5 + 3x7=21
21+5=26
26-1
answer-25
8. 8(2nd power)divided by 2(4) +3(7)-1
8 to the 2nd power =16
2(4)=8
3(7)=21
16 divided by 8+21-1
8+21=29
29-1=28
answer 28
