Answer:
280 downloads
Step-by-step explanation:
-let x denote the number of standard version downloads.
-Given that the high-quality version was downloaded four times as often as the standard version it is denoted as 4x
-This can then be expressed as:

Hence, the number of standard version downloads is 280
13 to the second power is 169.
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2(20+60+48)=2(128)= 256 square inches
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Domain:
∞
Interval Notation: (-∞, ∞)
Range:

Interval Notation: (-∞, 4)
IT IS THE SECOND ONE
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Answer: B) 2(x+4)
Step-by-step explanation: Hope this help :D