If a soil sample test gives a positive result it is blank percent likely that the soil sample contains organic matter ​

What is the product of the radical expression. (7-2square root) (8+2 square root)

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

What is the greater volume 72 quarts or 23 gallons