Answer:
8 is the number
Step-by-step explanation:
3x8= 24
24-9 is 15
In order to find the average you have to add up all the data values and then find the sum of the data values.

So on average he ran about 82.5 miles.
45 minutes because it has 4 dots and that’s greater than the rest on the dot plot.
The answers is 1 becuase 3/3=1 and 4/4=1
W = width
3w + 7 = length
Equation: 3w + 7 + w = 75
Combine like terms: 4w + 7 = 75
Subtract 7 to the other side: 4w = 68
Divide both sides by 4: w = 17
Width = 17
Length = 3(17) + 7, so 58