Find the sum. Write your answer in simplest form. 3 8/9 + 1 5/12

4 36/47
5 11/36
4 13/22
5 1/4

The perimeter of a square is80-64y units. which expression can be used to show the side length of one side of the square?

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles