Light moves very fast — approximately 3×10^8 meters every second. at that rate, how many meters does light travel in one year, which is about 3×10^7 seconds long? this so-called light year is used in astronomy as a yardstick for measuring even greater distances.

It takes evan 6 3/4 to mow 3 lawns. it takes 2 1/3 hours to mow me. gals lawn and 1 3/4 hot mow ms. lee’s lawn. how many hours does it take evan to mow the third lawn?

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys