C, because the independent variable would be the variable that is changing -- in this case, the temperature. The dependent variable changes according to the independent variable, and is called so because it depends on the temperature of the pool.
Step-by-step explanation:
9(x+1) = 25+x
open the bracket
9x + 9 = 25+x
collect like terms
9x-x = 25-9
8x = 16
x = 2
Answer:
22400
Step-by-step explanation:
280×80 miles
22400 miles
I think number 2 because the other answers doesn't seem like an experiment <span />
