Please help find the explicit and recursive formulas for the sequence is listed

Regular price is $77.00 and the discount is 5% find the sale price

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.