In doing a science experiment, Amanda notices that the temperature
of the test tube decreases by 21
degrees Celsius. If the temperature
was 19 degrees Celsius, what is the
temperature now?

answer: i believe c. is the answer sorry if i am wrong

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.

well, if it's triangular garden, the triangle could represent the garden.

(x,y) it'll always be like that.

in this case x is grams and y is ounces.

if there were numbers there, like (5,3)

x would be 5 and y would be 3.