Determine if each equation has one solution, no solution, or an infinite number of solutions.

2(3x+4)-(x-8)=3(4x+2)-7x+10

3(x+1)-x+4=2x-6

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?