Find the exact value of sin(140°)cos(20º) – cos(140°)sin(20°). -1/2. -sqrt 3/2. sqrt 3/2. 1/2

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?