Calvin's home is located at the midpoint between fast pizza and pizza now. pizza now is a quarter mile away from Calvin's home. how far away is pizza now from Calvin's home? hiw far apart are the pizzerias

As you said in the beginning pizza now is quarter mile away from Calvin`s, so this means pizza now is STILL quarter miles from Calvin`s house. And since his house is the midpoint so you must multiply 1/4 mile by 2 to get a product of 2/4 or 1/2 miles apart!!