Traci collects money for a dance marathon.
 => One group of sponsors donate $6 per hour she dances.
 => Another group donates $75 no matter how long she dances.
 Find out what number of hours does she have to dance to the nearest minute in order to collect at least $1000
 Formula:
 => 75 dollars + 6x = 1000 dollars
 => 6x = 1000 – 75
 => 6x = 925
 => 6x / 6 = 925 / 6
 => x = 154.17
 Let’s check
 => 154.17 * 6 = 925 + 75 = 100