PLEASE HURRY AND ANSWER I WILL MARK BRAINLIEST Which expressions are equivalent after simplifying? Check all that apply.

A) (3.1a – 2.7b) + (1.5a – 4.9b)
B) (2.3a + 0.2b) – 8b
C) (–3.5b + a) – (4.1b – 3.6a)
D) –0.4b + (8b + 4.6a)
E) 4.6a – 7.6b

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.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)