A15 ft building casts a 9 ft shadow. how tall is a building that casts a 30- foot shadow at the same time

Acircle has a circumference of 28.36 units what is the diameter of the circle

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4