Can I get help on this?

A) 119

Step-by-step explanation:

420 85% = 357 people said they drink coffee

10% = 42

5% = 21

42 x 8 = 336

336 + 21 = 357

1/3 of 357 = 357 ÷ 3 = 119 people drink their coffee black.

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

a

step-by-step explanation: