Akite is flying at the end of a taut string
500 feet long. if the kite is
directly above a point 400 feet
from the end of the string, how
high is the kite above the
ground?

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

you are playing an adventure game on your computer. you come across a troll who won't let you pass and there is no other way to get to the other side of the river except over the bridge he is guarding.

the troll is a nerd. he takes great delight in watching people struggle with his problems. very few get them. he only gives you one chance and then he changes the puzzle. you have to solve this one.

before you are four blocks. they are numbered 11,6, -7,21.

he tells that the answer he wants is minus and between -1 and - 2. you can use +, -, ×, ÷   ( and ) as many times as you like or no times at all. you don't like the way he's looking at you, but you need to cross the bridge. what do you do?