Help mathematicians please

B. 35 dollars

Step-by-step explanation:

So first you have to subtract 20 from 160 because that is the only cost that we definitely know. 160-20=140

Then you have to divide 4 from 140 because the sweaters cost the same amount and she bought 4 of them and 140 divided by 4 is 35

So each sweater coat 35 dollars

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )