PLZ HELP ME there are three problems i did already but i am failing this class PLEASE HELP ME u dont have to do all just some works but i have ALOT to do PLEASE SAVE MY SOUL

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6