Nick eats 50 cupcakes ande he had 20 how much does he have

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate. true or false?