Denelle is deep-sea diving with two friends. Mei is exploring a coral reef 7.9 meters in front of Denelle, and Tracy is floating on the surface directly above Denelle. If Tracy and Mei are 10 meters apart, how far apart are Denelle and Tracy?

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

What is the difference between the equations of a vertical and a horizontal line?