(1) The train travels 4 miles per gallon.
(2) The slope of the graph is 
Explanation:
(1) The miles that train travels per gallon is given by

Dividing, we have,

Thus, the train travels 4 miles per gallon.
(2) To determine the slope, let us consider two points from the graph.
The coordinates are
and 
Thus, substituting the coordinates in the slope formula, we get,

Simplifying, we have,

Thus, the slope of the graph is 
Its simple, the expression is 7+x and it does not have an equal sign since it is not an equation
Answer:
3.08 i turned it to a decimal
Step-by-step explanation:
2 3/4= 2.75
1/3=.33 and add them to get 3.08
in fraction form it is 3 1/12
It will take 8 minutes.
You use a proportion
5/1=2400/x you use 2400 because 2.4km=2400 meters and u need to use the same unit of measurement.
so cross multiplying gives you 5x=2400 which is equal to 480. BUT this is 48 seconds, and it asks you how many minutes, not seconds. So, you divide by 60 because there are 6 seconds in a minute, and you get 8.
The number of nine-players team= 21 teams.
The number of ten-players team= 5 teams.
<u>Step-by-step explanation:</u>
<u>step 1:</u> The total players signed up for a volleyball league= 118 boys+121 girls= 239 players.
<u>step 2:</u> The coach first makes a 9 players team= 239-9= 230 members
In this stage, the number of 9 players-team is one.
<u>step 3:</u> The remaining 230 players cannot be divided equally into 9 players, since 230 is not divisible by 9.
<u>step 4:</u> Find the number within 230 that is divisible by 9 as a whole. Check for easy number (9*20= 180 is within 230)
Therefore, 230-180= 50 players are remaining.
In this stage, the number of 9 players-team= 1+20= 21 teams with 9-players.
The number of 10 players-team= 50 players/10= 5 teams with 10-players.