Answer:
60
Step-by-step explanation:
4(5+4+6)
4(15)
60
Answer:
A.
m = -1
Step-by-step explanation:
Slope Formula: 
Simply plug in your 2 coordinates into the formula to find slope <em>m</em>:
m = (6 - 4)/(2 - 4)
m = 2/-2
m = -1
Answer:

Step-by-step explanation:
<u>Using mental math to find the slope of the line:</u>
If you think about the formula, then you set up the points in your head, you will notice that the first point is on top of the second point. And that way makes it easy to simplify. All you would need to do is subtract down in your head: For example:
(0, 0)
(4, 8)
As you can see, the first point is on top of the other, and that way you can just subtract from bottom to top. If you do it that way, it is set up (Remember, you would do this all in your head)
R=26, you can use cross multiplication to figure this proportion out. 22 times 13 is 286 and 11 times r is 11r , leaving you with 286=11r. you would then divide each side by 11 to isolating the variable giving you r=26.
0.60-0.40=0.20
3.80-3.20=0.60
0.60 divided by 0.20=3
Hence, each student got 3 toppings each.
hope it helps:))