What does it mean for a point to be a solution to a linear equation? for example if i say (2,5) is a solution to the equation y=2x+3 how could you check my claim

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

In 2000 there were 100 rabbits in central park the population increased by 16% each year ? write a function to illustrate the situation. how many rabbits were in central park in 2005 . predict how many rabbits there will be at the end of this year we are in 2018?