I'm doing the order of 250,000 envelopes the envelopes are packed in boxes which holds 500 envelopes at peace then the boxes are packed in cartons which holds 2500 boxes how will i need to complete the order

Three coins are flipped. what is the probability that there will be at least two tails?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt