In the figure, a and b lie on the same horizontal ground and are 250m apart. cd is a vertical building on the ground, where ∠cab=30° and ∠cbd=48°. i need to find the height of the building and correct it to 3 significant figures.
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There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?