Warm Up Math (4)

A math teacher wrote the following values on the whiteboard and asked students to write them in order from least to greatest.

 $4\sqrt{10}$   $\sqrt{99}$   $3\pi$   $2\pi\sqrt{3}$  

•  $\sqrt{99}$   $3\pi$   $2\pi\sqrt{3}$   $4\sqrt{10}$  

•  $3\pi$   $\sqrt{99}$   $4\sqrt{10}$   $2\pi\sqrt{3}$  

•  $4\sqrt{10}$   $2\pi\sqrt{3}$   $\sqrt{99}$   $3\pi$  

•  $3\pi$   $\sqrt{99}$   $2\pi\sqrt{3}$   $4\sqrt{10}$  

A rain gauge had 0.6 centimeter of rain after 2 hours , 0.9 centimeter after 3 hours , 1.2 centimeters after 4 hours , and 1.5 centimeter after 5 hours. At what rate did in rain ?

• 0.3 cm per h

• 0.4 cm per h

• 1.2 cm per h

• 3 cm per h