Nikki wants to buy a dog bed that costs $87. she earns $6 per week for doing chores. how many weeks will nikki have to do her chores in order to earn enough money to pay for the dog bed

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

What is the factor form of x^2-9x+14

There are 1872 steps in a building that has 104 floors. each floor has the same number of steps. a second building has the same number of floors but 2 fewer steps between each floor. how many steps are there between each floor of the second building?