Carrie started with 12 ounces of water when she began her walk. when she was finished walking she had 2 1/4 ounces of water left. how much did she drink?

Step-by-step explanation:

Given : The initial amount of the water when Carrie started her walk = 12 ounces

The amount of water after she finished her walk =

Then , the water she had drunk is given by :-

Hence, the amount of water she had drunk =  

because they could drop even lower..

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!