How does the volume of a cylinder change if the radius is quadrupled and the height is reduced to a third of its original size?

a. v= 1/3 pie r2h
b. v=2/3 pie r2h
c. v=4/3 pie r2h
d. v=16/3 pie r2h

Graph the equationy= x+3[tex]y = x + 3[/tex]

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?

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle