#1 how long would it take to count to one billion, reciting the numbers one after another? first, write a guess into
your notebook, then come up with a thoughtful answer. what assumptions did you make in your calculations?
can you explain your step

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.