The beach hut purchased a supply of sunglasses and visors. the ratio of sunglasses to visors was 7: 4. each pair of sunglasses cost $6.00, each visor cost $4.50, and the total bill was $720. how many pairs of sunglasses were purchased?

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7  

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)