What are two fractsions between 3/5 and 4/5

Find the missing dimension! need asap! tiny square is a =3025 in ²

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

Neal buys a board game. he pays for the board game and pays $1.54 in sales tax. the sales tax rate is 5.5%. what is the original price of the board game, before tax