Vicky bought 3 1/2 pounds of oranges. Each pound costs $3.90. Which of the following equations represents the total cost, c , Vicky paid for the oranges and the amount of money she spent

The equation that represents the total cost, c, Vicky paid for the oranges and the amount of money she spent is:

c = (3 1/2) * (3.90)

To find the total cost, we need to multiply the weight of the oranges by the cost per pound. In this case, Vicky bought 3 1/2 pounds of oranges, which can be written as 3.5 pounds. Each pound costs $3.90. Therefore, the total cost, c, can be calculated using the equation:

c = 3.5 * $3.90

Simplifying this equation gives us:

c = $13.65

So, the equation that represents the total cost, c, that Vicky paid for the oranges is:

c = $13.65

The equation that represents the total cost, c, Vicky paid for the oranges is:

c = (3 1/2) * 3.90

To calculate this, first convert the mixed number 3 1/2 to an improper fraction:

3 1/2 = (3 * 2 + 1)/2 = 7/2

Now, substitute the value of 7/2 into the equation:

c = (7/2) * 3.90

Simplifying the equation:

c = 7/2 * 3.90 = (7 * 3.90) / 2 = 27.30 / 2 = $13.65

Therefore, Vicky paid a total of $13.65 for the oranges.