Step 1: Add up all the numbers: 12 + 12 + 11 + 10 + 9 + 4 = 58
Step 2: Divide by how many there are. There are 6 numbers so, 58 <span>÷ 6 = 9.6</span>
<span /><span>Answer: 9.6
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<span>a. direct variation
A relationship between two variables in which one is a constant multiple of the other. </span>
Variable x is ryans miles
amy-ryan=answer
40-31=x
x=9
ryan ran 9 miles
hope this helps
40-31=x is the equation
Can write 3x or 3(x) or 3•x