Humpty Dumpty is sitting on top of an 8-feet wall. Alice is on the ground running toward him at a rate of 2.5 meters per second. How fast is the distance between
Alice and Humpty Dumpty changing when she is 7 meters from the bottom of the wall?

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

answer: no, but if it does it's a obvious pattern.

step-by-step explanation:

-3 degrees

step-by-step explanation:

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?