I need help with question 18. The answer is53√3 ft^2. But how do I get there?

Hope it helps....

Step-by-step explanation:

52√3 ft²

Step-by-step explanation:

sin 60° = (√3) / 2 = h/8

h = 8 x (√3) / 2 = 4√3

cos 60° = 1/2 = a/8

a = 4         b = 15-4 = 11

area = left triangle + right rectangle

area = (4*4√3) / 2 + 11*4√3

        = 8√3 + 44√3

        = 52√3

the answer is 62

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24