Tan x = 3/4 and x is in first quadrant. Cos y = 7/25 and y is in second quadrant.
Find each of the following...

a. Sin (x + y)
b. Tan (x-y)
c. Cos 2y

unless if u could do my questions, if not i wouldn't want to

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

c) yes, because of asa or aas