Alice invests $5000 in two certificates of deposit; the interest on the first certificate is 4%, and the interest on the second is 5%. let's denote the amount she invests in the first certificate by x. then the amount she invests in the second certificate is

.
the interest she receives on the first certificate is

,
and the interest she receives on the second certificate is

.
so a function that models the total interest she receives from both certificates is
y =

.

(4,5

look up a corrdinate plane and do what the thingy says and boom

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

the answer is c)8

step-by-step explanaction:

18.8cm hope i at all

step-by-step explanation: