How much matter in the universe is comprised of atoms

How do you identify the necessary information that is missing from a problem?

What is the slope of the line passing through (-3,5) and (5,-3)

1.3 nearest tenth place

Which is a composite number A. 81 B. 41 C. 61 D. 71

The U. S public debt as of October 2010 was $9.06 times 10 to the 12th power. What was the average US public debt per American if the population in 2010 W. $3.80 times 10 to the eighth power people? round to the nearest hundredth

So, I had assumed that this one was going to have the answer of 36 ... just out of pure guessing. I got that wrong so now I'm curious as to how I would go a bout solving it.

Ryan had 1/2 pound of chocolate. he divides, it into 4 equal portions. Enter the amount of chocolate, in pounds

Iq scores are measured with a test designed so that the mean is 116116 and the standard deviation is 1818. consider the group of iq scores that are unusual.

Runners are always talking about minutes per mile. This is the inverse of distance divided by time. Like, on my morning jogs I shoot for 11 minutes per mile. Next month, I'm doing a 10k (that's 10 kilometer) run with my daughter.

There are 20 juice cups and each juice cup holds 10 fluid ounces. the juice comes in one gallon bottles how many gallon bottles will you need to purchase