Nicholas decided to take a hot air ballon ride. after being in the air for 20 seconds, he is 200 feet above the ground. after being in the air for 60 second, he is 400 feet above the ground. what is his rate of ascent in feet per second?

300 feet per minute

because it is a ratio

you forgot an image

step-by-step explanation:

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.