Describe the history of the U. S. National Park system. List five parks and their locations.
I need this for a test but I don't have time to actually research, so if someone could answer fairly quickly I'd appreciate it.

The diameter of a table is 5 feet. what is the circumference

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.

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?