There were 40 swimmers on the team last year. This year, there are 20 swimmers. What is the percent decrease?

i agree it should be 50%

Step-by-step explanation:

half of 40 is 20

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

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.