Name two three dimensional figures that produce a square when sliced horizontally by a plane

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

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