Answer:
The total amount he will have in a year=$31.5
Step-by-step explanation:
The total amount he will earn in a year can be expressed as;
The total amount=Principle amount+interest amount
where;
Principle amount=$30
Interest amount=Principle amount×interest×number of years
interest=5%=5/100=0.05
number of years=1
Interest amount=(30×0.05×1)=1.5
replacing;
Total amount=(30+1.5)=31.5
The total amount he will have in a year=$31.5
