Which is a common way for a scientific calculator to show the number below?
8.1 x 102
A. 2 x 108.1
B. 2.18
C. 2.1E8
D. 8.1E2

How do you answer this question? (step by step)

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.