What paper should I use for technical drawing?

You should try to photograph people on bright sunny days because the light will be best a) true b) false

There is a simple pattern for determining if a binary number is odd. what is it and why does this pattern occur? how many bits would you need if you wanted to have the ability to count up to 1000? how high could you count in binary if you used all 10 of your fingers as bits? (finger up means 1, finger down means 0)

What is one reason why indoor air pollution has become an increasing problem.