He is incorrect because you can multiply unlike terms like y and x and you'll get xy but you can't add unlike terms like 13x+16y is the simplest it can be.
Please find the attached photograph for your answer
Answer:
The principle amount = $4000
Step-by-step explanation:
Formula:
Simple interest I = PTR/100
P - Principle amount
T - Number of years
R - Rate of interest
<u>To find principle amount</u>
Here , P = ?, T = 2 years, R = 5.9% and p + I = $4472
I = PTR/100
P + (P*2**5.9)/100 = 4472
P[1 + 11.8/100] = 4472
P[111.8/100] = 4472
P = (4472*100)/111.8 = 4000
Therefore the principle amount P = $4000
I'm really sorry if I'm wrong but
14*26=364 so he can go 364 miles for every full tank so his first 364 are covered since he starts with a full tank.
Step 2:
838/26*14 = <span>451
</span>
step 3:
He'd only have to stop once
