And two sisters, julia and anna, both trade stocks online to supplement their pensions. in 2015 julia earned $20,000 more than anna from her trading. for 2015 neither of them reported their investment income to the canada revenue agency. in 2016 julia made $30,000 more from trading than she had the year before, and anna made $10,000 more than she had the year before. for 2016 both declared their trading income and paid 50% of it in tax. their combined income after tax from trading in 2016 was $80,000. how much did julia make from trading in 2015?

10 b/c 5*2 =10

step-by-step explanation:

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!