Find an expression for the number of squares in the nth pattern of the sequence. i noticed that the number of squares you add in each pattern it depends on the pattern number (see image) but i don't know how to get the expression.

Anne plans to increase the prices of all the items in her store by 5%. to the nearest cent, how much will an artist save if the artist buys a canvas and a frame that each measure 24 by 36 inches before the price increase goes into effect?

Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.

Which are the possible side lengths of a triangle?