How long will it take to fill the tank with 40 gallons of water?

15-25

Step-by-step explanation:

A:
the coefficients are 15 and 100
the variables are x and y
B:
there are two terms
they are 15x and 100y
you know because a term is a single number, single variable, or combined number and variable in an expression
C:
15x shows the total earned from her allowance because the coefficient 15 is in relation to her allowance