5.3-2.8x-7.1+3.9x

I really can't figure it out, can someone do it step but step to?

Also do step by step for: 1/2x+7/12+3/5x-2/3

I saw a answer for this one but it was an improper fraction.

A local club is arranging a charter flight to hawaii. the cost of the trip is $574 each for 81 passengers, with a refund of $5 per passenger for each passenger in excess of 81.

A group of veterinarians at a major veterinary hospital was interested in investigating a possible link between enteroliths, stones that form in the colon of horses, and diet.

Suppose 11 people arrive at a bank at the same time. In how many ways can they line up to wait for the next available teller? a) 3,628,800 b) 362,880 c) 39,916,800 d) 121 e) 11

Solve for n in the follow equation 4n - p = 3r

5. Nobu ate of one pizza, Brandi ate half of that, and Zander ate twice as much as Nobu and Brandi. Additionally, Ginger ate of a pizza. How much pizza did the four of them eat total? Explain

A radioactive gas with a half-life of 2.4 days accidentally leaks into a room. If the radiation level is now 25% above a safe amount, for how long should the room be emptied?

What is a better deal 25 tickets for $10 or 120 tickets for $50.

Analyze the way in which the diary of a young girl by anne frank is related to the themes and issues of its historical period.

Find the GCF of the following: a) xy, y2x, x2y b) x2, x3, x3 c) y2 (2y - 1), 3 (2y - 1)

What is 1/2p-8=40. (Don't mind this part)