The total amount Lusac have in his savings after 3 more years with 1.8% saving interest is $1055.10.
<h3>What is simple interest?</h3>
Simple interest is the amount charged on the principal amount with a fixed rate of interest for a time period. Simple interest calculated only on the principal amount.
The formula for the simple interest can be given as,
![I=\dfrac{Prt}{100}](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7BPrt%7D%7B100%7D)
Here, (I) is the interest amount earned on the principal amount of (P) with the rate of (r) in the time period of (t).
Lucas spends $83.42 in additional interest and charges on monthly payments as the result of a prior bankruptcy. The amount save in a year (12 months) is,
![P=83.42\times12\\P=1001.04](https://tex.z-dn.net/?f=P%3D83.42%5Ctimes12%5C%5CP%3D1001.04)
The interest earned on this principal amount with earning 1.8% simple interest, after 3 years is,
![I=\dfrac{1001.04\times1.83}{100}\\I=54.06](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7B1001.04%5Ctimes1.83%7D%7B100%7D%5C%5CI%3D54.06)
The total total amount in his bank account after 3 years is,
![A=P+I\\A=1001.04+54.06\\A=1055.10](https://tex.z-dn.net/?f=A%3DP%2BI%5C%5CA%3D1001.04%2B54.06%5C%5CA%3D1055.10)
Hence, the total amount Lusac have in his savings after 3 more years with 1.8% saving interest is $1055.10.
Learn more about the simple interest here;
brainly.com/question/2294792