Please help.

Step-by-step explanation:

find B° = m∆-90°-50°

= 180°-90°-50°

B°=40°

find c

since cos(b) = 27/c

cos(40°) =27/c

c=27/cos(40°)

c≈35.246

fin b

since sin(b) = b/c

sin(40°)=b•c

b= sin(40°)•c

b≈22.656

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

ratio is 2 : 9

the answer is three

13.5 : 3