Each costume for a dance group in a talent show requires 2 yards of black material and 3 yards of red material. the dance group has 30 yards of black material and 60 yards of red material. what is the greatest number of costumes they can make? explain

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%.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Find the missing dimension extra points