Answer:
m = 19/14 so the third point is (8, 19/7).
Step-by-step explanation:
If they are co-linear then the the slope will be equal.
The slopes of the lines are:
(difference in y coordinates) / (difference in corresponding x coordinates)
Slope between the first 2 points = (-3-1) / (-2-5) -4 / -7
= 4/7.
So if the 3 points are co-linear:
4/7 = (2m - -3) / (8 - -2)
4/7 = (2m + 3 / 10
7(2m + 3) = 40
14m + 21 = 40
14m = 19.
m = 19/14.
Answer:
The weight of 6 bottles =
or 
Step-by-step explanation:
Given:
Total number of bottles = 6
Weight of each bottle =
pound
To find the total weight of 6 bottles.
Solution:
We can plot the number line for six bottles.
We can the plot the weights in another number line.
Each unit represents
pound of weight.
As the number of bottles increase the number of pounds of weight increase by
.
Thus, weight of 6 bottles =
pounds
Converting fraction to mixed number.
pounds
Or in decimals 
Thus weight of 6 bottles =
or 
Cost of Sugar per pound = 3.29$
Cost of sugar for 7.9 pounds =
=>3.29 x 7.9
=>25.991$
Rounded to nearest 100ths place = 26.000$