Answer:
$90-$70=$20
Step-by-step explanation: U take 90 from 20
it is the last one im pretty sure
k
Step-by-step explanation:
B
1/16 or 0.0625
we can take 4 outside the parentheses and we would get 4^(4-7+1)=4^(-2)= 1/(4^2)=1/16=0.0625.
