Jessica purchased 30 dolls and play trucks for the play school. Each doll costs $5 and each playtruck costs $10. How many dolls and play trucks did she buy for $200?

Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Maurice has 54 fewer comic books than rebecca.they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection