When does it make sense to use the fraction form? When does it make sense to use a decimal? When does it make sense to use a percentage? Explain.

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

What is the anwers for 9+2x=5x-3-x

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio