Simplify: 3x - 8 - 12x + 3

What is the value of 1/3x + 7x when x = 5

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Bradley is preparing a presentation to show the ceo of his company he wants to emphasize that the profits of their competitors have increased slowly over the past 16 months