Question

2y × 4 × 5 =○ 2y(9)○ 8y + 5○ 20(2y)

Explanation:

Step1: Multiply constant terms

$4 \times 5 = 20$

Step2: Combine with variable term

$2y \times 20 = 40y$

Step3: Simplify option 1

$2y(9) = 18y$

Step4: Simplify option 2

$8y + 5$ (cannot combine)

Step5: Simplify option 3

$20(2y) = 40y$

Answer:

20(2y)