Answer:
27
Step-by-step explanation:
28+17+17+15=76
76÷4= 19
For this case we have that by definition, the line equation of the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
According to the statement we have:

Thus, the equation is of the form:

We substitute the given point and find "b":

Finally, the equation is of the form:

Answer:

About 400 marbles. You simply set up a proportion and solve it as I did in the photo attached.
Answer:
<em>Good Luck!</em>
Step-by-step explanation: