It depends on what you're asking. If angle a and b are both on a straight line, b would equal 169 degrees because the total has to add up to 180 degrees, but if they are on a right angle, b would equal 79 because it has to add up to 90 degrees.
I would think population density
Do you have a picture of the page? Maybe I can help...
Cell D is a plant cell and Cell C is a animal cell
Rotate the Earth counter clockwise in the direction shown by the arrow to mimic the passing of time<span>. Show that the Full </span>Moon<span> rises at 6pm, is </span>highest in the sky<span> at midnight and sets at 6 am. It is not visible in the </span>sky<span> at noon because the Earth itself blocks the </span>Moon<span> from view.</span>
