Statements are all TRUE
sinA =
and cosB = 
cscA = 1/sinA = 1/(a/c) =
and secB = 1/cosB = 1/(a/c) = 
tanA =
and cotB= 1/tanB = 1/ (b/a) = 
An estimate helps you place the decimal point when multiplying because if you find out how many decimals there are and once you are done doing you estimated multiplication you put two decimal points after that.
Hope I helped some what and didn't make you confused.
Answer:
Two Angles are Supplementary when they add up to 180 degrees.
Step-by-step explanation:
Im pretty sure it would be 54÷ b- 6 if your looking for only the cost of the braclets nothing else.