If we call the number "x" then:
x*25%=21
x*25/100=21
x=21*4
x=84
Hope this helps. :)
Divide 6 by


÷

Change

to a reciprocal

×

=
Simplify and your answer is 8
3. Banks use interest in order to make a cut of the money.
Answer:
6,561
Step-by-step explanation:
(-9)^4 = -9*-9*-9*-9= 6,561