Answer:
B, C, D
Step-by-step explanation:
Use the distributive property. Multiply both terms inside the parentheses by 4.
4(4a + 5) = 4 × 4a + 4 × 5 = 16a + 20
Now let's look at each choice:
A. 16a + 5, not equal to 16a + 20. Incorrect.
B. 16a + 20. Correct.
C. 12a + 20 + 4a = 12a + 4a + 20 = 16a + 20. Correct.
D. 2(8a + 10) = 2 × 8a + 2 × 10 = 16a + 20. Correct.
E. 16a + 5 + 4 = 16a + 9, not equal to 16a + 20. Incorrect.
