Answer:
Step-by-step explanation:
Given
Liam deposited 
Rate of interest is 
If the amount after t years is 
Simple interest is given by

And amount is


Substituting values we get





Answer:
look at the picture i have sent
The mistake is there is no parenthesis around 4x+12


hope this helps!
p.s. can i have brainliest?
Answer:
The number before a variable. For example, 4x. 4 would be the coefficient, and x would be the variable.