Jessica has 45 books in her library. She bought several books at yard sale over the weekend. She now has 78 books in her library. How many books did she buy at the end of the yard sale? x+45=78; 33 books
x-45=78; 33 books
x-78=33; 111 books
x+45=33; 37 books

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?