The local park has 4 bike racks. each rack can hold 15 bikes. there are 16 bikes in the bike racks. which expression shows the total number of empty spaces in the bike racks? (15x16) + 4 (15x16) - 4 (4x15) + 16 (15x4) - 16

What is the upper quartile in the box plot?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12