Answer:
The correct answer is:
Matthew's rate is higher by $50 per month.
Step-by-step explanation:
We know that Christopher's rate is $550 per month.
To find Matthew's rate, we will treat the data we have as ordered pairs:
(3, 1800)
(6, 3600)
(9, 5400)
We find the slope of the line between these points. The formula for slope is:
Using the first two points, we have:
To verify Matthew saves the same amount each month, we will find the slope between the second two points and make sure they're the same:
Matthew's rate is $600 per month.
This is higher than Christopher's by 600-550=$50 per month.
When you multiply 3.5 by itself 3x it will give you 42.875
Answer:
.86
Step-by-step explanation:
There are 5+10+15 = 30 students that earned and A, B or C
P( A, B or C) = number of students that earned and A ,B , C / total
=30/35
=.857142857
Rounded to the nearest hundredth
=.86
