I need one to solve this please Given sin A = and cos B = where A and B are both acute,
the exact value of cos(A - B)

What is this inequality notation? t is less then or equal to 2

How do you use the elimination method for this question? explain, because i really want to understand!

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made