Question

laura wants to make one online order for oak trees.

• she will pay $19 for each tree she orders, including tax.
• the delivery fee is $25 for the complete order, including tax.
• laura can spend up to $130 to order the oak trees and have them delivered.

what is the maximum number of oak trees that laura can order?
a. 2
b. 3
c. 5
d. 6

Explanation:

Step1: Define variables and inequality

Let \( x = \) number of trees. Total cost: \( 19x + 25 \leq 130 \)

Step2: Isolate variable term

Subtract 25: \( 19x \leq 130 - 25 = 105 \)

Step3: Solve for x

Divide by 19: \( x \leq \frac{105}{19} \approx 5.526 \)

Step4: Round down to integer

Max integer x is 5

Answer:

C. 5