4. In the circle below, the sum of which arcs is equivalent to arc AE?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?