Situation 3: Charter-A-Bus charges $50 plus $0.40 a mile for renting a charter bus. Buses-4-U
charges $35 plus $0.55 a mile. For what number of miles is Buses-4-U the less
expensive company for renting a charter bus?
Inequality:
Key word:

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.

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!