Which polynomial function has a leading coefficient of 1, roots-2 and 7with multiplicity 1, and root 5 with multiplicity 2

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

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%.

A(t)=728(1+0.04)^t how much money did aditya originally invest