Connie sells lemonade for$0.25 per small cup and $0.75 per large cup if she sells 20 large cups must she sell to make $8.00

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?