Question

The price of a gallon of milk is represented by the expression 3x, and the price of a loaf of bread is represented by the expression 4x^2 + 5x - 3. If you buy 2 gallons of milk and 3 loaves of bread, how much do you spend? Write it out in words.

B.
C.
D.
12x^2 + 21x

Now, calculate the total cost of 2 gallons of milk and 3 loaves of bread using the given expressions and simplify the resulting expression. Choose the correct expression representing the total cost from the options (B, C, D)."

Answer 1

To calculate the total cost of 2 gallons of milk and 3 loaves of bread, substitute the expressions into the given equation and simplify.

Step-by-step explanation:

To calculate the total cost of 2 gallons of milk and 3 loaves of bread, we need to substitute the expressions for milk and bread into the given equation. The expression for 2 gallons of milk is 2(3x), and the expression for 3 loaves of bread is 3(4x^2 + 5x - 3). Multiplying these expressions, we get:

2(3x) + 3(4x^2 + 5x - 3)

Simplifying, we have:

6x + 12x^2 + 15x - 9

Combining like terms, we get:

12x^2 + 21x - 9