Answer:
140
Step-by-step explanation:
Since n represents the number of people, and they are asking the cost for 10 people, you can do 4(10) + 100 which is 140
Answer:
x = 20
Step-by-step explanation:
50 - 38 = 12
a^2 + b^2 = c^2
16^2 + 12^2 = x^2
256 + 144 = x^2
400 = x^2
x = 
x = 20
Answer: B
Step-by-step explanation: 6x represents the positive because it represents the amount being made from each ornament. The -30 represents the one-time cost of the table. And the -2.50x represents the cost of each ornament.
Cosine Rule again:-
cos A = (9^2 - 6^2 - 14^2) / (-2*6*14)
= 0.8988
m < A = 26 degrees