Express the polar coordinates (-3, pi/2) as cartesian coordinates.

choices:
(-3,0)
(-3,3)
(0,-3)
(3,-3)

What are two numbers that have a sum of 15?

Joe bought 4.25 pounds of pears for $7.18. if the equation 4.25x = 7.18models the situation, what does the variable stand for?

Each weekday davina rides her bike from her house to school. after school, she rides to the library. then davina takes the same route to get home. these locations are shown on the grid below, where 1 unit on the grid represents 1 kilometer. how many kilometers does she ride each day? 10 16 20 32