Answer:
C is the right answer
Step-by-step explanation:
Rida:
5 1/2 :77
5.5 : 77
Divide both sides by 5.5 to get $/hour:
1:14
Elisa:
3 3/4:60
3.75:60
Divide both sides by 3.75 to get $/hour:
1:16
16 is bigger than 14 so Elisa earns more.
Hope this helps :)
Answer:
and 
Step-by-step explanation:
Recall that 
is a value of the function cosine for the special angles: 
and 
, then:
You would probably find it on the altitude or height.
