Answer:
5 mph
Step-by-sep explanation:
To find of out the difference between the speed of the two drivers in miles per hour (not in miles per minute), first, calculate the unit rate or speed of driver 1 using the graph, and driver 2 using the table given.
Unit rate/speed = distance travelled/time = y/x.
Speed of Driver 1/unit rate:
The graph shows 1.5 miles (y) is travelled in 2 minutes (x).
Convert the 2 minutes to hour, you will have:

Speed in mph = 
Speed of Driver 1 in mph = 45 mph
Speed of Driver 2/unit rate:
The table shows 2.5 miles (y) is travelled in 3 minutes (x).
Convert the 3 minutes to hour, you will have:

Speed in mph = 
Speed of Driver 2 in mph = 50 mph
Difference between the speed of the two drivers = 50 - 45 = 5 mph
Answer:
The earning of Sam is $312.5
Step-by-step explanation:
Given as :
The total earning of John and Sam together = $1200 per week
Let the earning of sam each week = x
So, The earning of John is ( 3 x - $50 )
Now, According to question
John earning + Sam earning = $1200 per week
So, ( 3 x - $50 ) + x = $1200
Or, 4 x - $50 = $1200
Or, 4 x = $1200 + $50
Or, 4 x = $1250
∴ x =
= $312.5
And ( 3 x - $50 ) = 3 × $312.5 - $50
So, = $ 887.5
Hence The earning of Sam is $312.5 Answer
I don’t see no expressions
After 4 months, Xian and Kai will have 140 stamps each.
A > -18/19 that should be the answer