$500 at 3.2% for 3 years

$548

Step-by-step explanation:

Principal= $500

Rate= 3.2%

Time= 3 years

Interest= PRT/100

= 500×3.2×3 / 100

= 4800/100

=48

Amount= Principal+Interest

=500+48

=$548

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.