The water pipe has a radius of 5 cm and a height of 7 cm. what volume of water does it take to fill the pipe?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.