Answer:
$960
Step-by-step explanation:
You are going to want to use the simple interest formula for this. The one below is modified for solving the interest earned.

<em>I = interest amount
</em>
<em>P = principal amount
</em>
<em>r = interest rate (decimal form)
</em>
<em>t = time
</em>
The first step is to change 3% into a decimal:
3% ->
-> 0.03
Now, lets plug in the values into the equation:


Jameson will be charged $960 of interest after 4 years.
I believe it’s 12. But I’m not sure
5r-4 and r=-5 so it would be 5(-5)=-20, then -4 , so is is -24
Step 1 : Simplify both sides
-5(6a+21)=-15
(-5)(6a)+(-5)(21)=-15
-30a-105=-15
Step 2 : Add 105 to both sides
-30a-105+105=-15+105
-30a=90
Step 3 : Divide both sides by -30
-30a=90
—————
-30 -30
a = -3
I think it’s D, sorry if I’m wrong.