C(h)=80h+210
80h+210=490 subtract 210 from both sides
80h=280 divide both sides by 80
h=3.5 hours
A, D, E; and F: The weights of 6th grade boys, how many 6th graders there are, the shortest height of the sixth graders, and how many pushups a sixth grade girl can do.. as these all stay relevant to the data provided
how do u even do this math?
