Acoin is tossed and a card is drawn from a standard deck of cards. what is the probability of landing on heads and choosing a heart ( in the deck of cards )

Simplify the expression. -2/5(10+15m-20n)

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Acabinmaker buys 3.5 liters of oat varnish the varnish cost $4.95 per liter what is the total cost of 3.5 liters