20 customers are eating at a local resturan. of the 20 customers 4 have enough to pay cash, 16 have enough to pay card and 3 have enough to pay cash and card, what is the probability that a customer has enough cash and a creditcard.

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

Which of the following scenarios demonstrates an exponential decay