From the given equations below,
(1) 6x + 6y = 7.50
(2) 10x + 5y = 8.75
Solving for the values of x and y simultaneously gives an answer of x = 0.5 and y = 0.75.
Thus, the cost of apples and oranges are $0.5 and $0.75, respectively.
(3/4)x+(3/2)x=9/4
(3/4)x+(3.2/2.2)x=9/4
(3/4)x+(6/4)x=9/4
3x+6x=9
9x=9
x=1
Answer:
$3.50 per mile
Step-by-step explanation:
Slope-intercept form of a linear equation: 
(where m is the slope and b is the y-intercept)
Given linear equation: 
(where x is the number of miles traveled and y is the total cost)
The rate of change is the slope of the linear equation.
Therefore, the rate of change is $3.50 per mile.
Number one and three is the answer