Step-by-step explanation:
I guess the answer is 187MB
2+5-71
7-71
-64
answer is -64
In the table, you can see level 1 is 5 to the first power, level 2 is 5 to the second and go on.
so in level 6 would be 5 to the sixth power
so the answer to first one is 5^6
for the second question you should know that level 2 is 5^2 and level 6 is 5^6 so 5^6/5^2 = 5^4 is the answer :))))
I hope this is helpful
have a nice day
30%*470=141 (So the number of students in 8 grade is 141)