20 * (31/100) = 21*0.31=6.51
20.00-6.51=13.49
Caleb paid $13.49
Answer:
x = 3
Step-by-step explanation:
We can write the equation as 16 + x = 19
To solve we can work backwards, I know the opposite of adding is subracting... so 19 - 16 = 3 which means x is equal to 3.
Hope that helps and have a great day!