Which equation has a graph that is a parabola with a vertex at (5, 3)? A; y = (x – 5)2 + 3
B; y = (x + 5)2 + 3
C; y = (x – 3)2 + 5
D; y = (x + 3)2 + 5
the answer is D i think

Find the value of the cosine for angle a

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%.

It says factor each expression completely 8y+48