Casey wrote a book with 78,000 456 word while she was revising her work she erase 1384 words then she added 574 words how many words does her story have now

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Which of the following is an example of conditional probability

Find the value of the variable and the length of each chord for #5 and #6.