Mrs. Maurer found in a recent survey that 70% of her students were completing homework assignments. Of those that had been doing homework, 85% passed the unit test. Of those not doing
the homework, only 50% passed the unit test.

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

answer: b

step-by-step explanation:

combine all like terms then its just a 2 step equation

i don't know

step-by-step explanation: