First off, you have to convert 8 minutes into seconds. A minute is <em>60 seconds</em>, so multiply 60 by 8. 60×8=480 Now, change 10⁹ into a standard number. Since the number is 10 that is to have an exponent, the exponent, in this case 9, indicates how many zeros are in the standard number. 10⁹=1,000,000,000 So, multiply 480 by 1,000,000,000. 480×1,000,000,000=480,000,000,000 So, the answer is 480,000,000,000.
Jax gets 4 packs per month...each pack contains 4 cards...so he gets 16 cards per month. Sofia gets 3 packs per month..each pack contains 4 cards...so she gets 12 cards per month..
56 + 16m = 68 + 12m 16m - 12m = 68 - 56 4m = 12 m = 12/4 m = 3.....they will have the same number of cards in 3 months
