What is the answer to the following problem, reported to the correct number of significant figures?

(7.000 − 6.009 ) / (10.00 x 0.01000 )

show how you get the answer, i would like to learn how to solve these kind of problems. you.

a. 9.910

b. 9.91

c. 9.9

d. 0.9910

e. 0.99

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Which property of water causes water drops to bead on a freshly waxed car?