Thats alot of questions but here goes
7.. 2 to the third power means 2x2x2 which = 8 so 7 is 8
12..When ever it says to the power of one u leave the number the same so7^1= 7
16..Answer is 1 any negetive times a negetive = a positive. 1x1x1x1x1=1
25..Answer is 16
26.. Looks like the same problem answer is 16]
Cant read last question