2x4=8 2x2=4 4+8=12, so it is A
1 second = 2 megabytes

2 seconds = 4 megabytes
Step-by-step explanation:
Given,
Time taken to download 5 megabytes =
seconds

Multiplying both sides by
to find unit rate

1 second = 2 megabytes




2 seconds = 2*2 megabytes
2 seconds = 4 megabytes
Keywords: fraction, multiplication
Learn more about fractions at:
#LearnwithBrainly
The second one is a perfect square trinomial
X^2+16x+64
Answer:
Step-by-step explanation:
Family.