6.8 dollars. how do you write the decimal 6.8 when it refers ti money

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?

Jim had 15 minutes to do 5 laps around his school what would his time be

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i