Answer:
(D)
Step-by-step explanation:
Given data:

Applying rule :

Therefore,

Answer will be 
Option (D) is correct
Answer:
Step-by-step explanation:
Sin80° = opp/hyp
Sin80° = 21/y
ysin80° = 21
y = 21/sin80°
y = 21.3
This question does not really make sense.
How ever I’ll try to respond to this with the best of my ability.
y=mx+b is nothing but slope intercept form.
M is slope value. B is the y-intercept.
There is really no need for x-intercepts in slope intercept form.
Hope this helps. :)
Answer:
112 rooms
Step-by-step explanation:
Simply if 10% of 140 is 14 20% of 140 is 28. So then 28 substract 140 is 112