If we call the number "x" then:
x*25%=21
x*25/100=21
x=21*4
x=84
Answer:

Step-by-step explanation:
Lets use the compound interest formula provided to solve this:

<em>P = initial balance</em>
<em>r = interest rate (decimal)</em>
<em>n = number of times compounded annually</em>
<em>t = time</em>
First, change 6% into a decimal:
6% ->
-> 0.06
Since the interest is compounded semi-annually, we will use 2 for n. Lets plug in the values now and your equation will be:

This kinda doesn’t make sense but maybe 80, 80, 20
M=-2/3
This is because it’s the slope I got and I don’t know how to explane it
Answer:
13.1
Step-by-step explanation:.