A gallon of gas costs $2.58. Your gas tank can hold 20 gallons. Find the cost of filling your gas tank if it is 1/4 full.

$12.90

Step-by-step explanation:

2.58x20=51.60

51.60 divided by 4 equals $12.90

Hope this helps

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.