Nel corso di nuoto invernale i ragazzi sono i 4/5 delle ragazze. In quello estivo ci sono 2 ragazzi in meno e 2 ragazze in più. Quanti iscritti ci sono ora in quello estivo?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?