A variable's "describes the kind of values that can be held by the variable, how the variable is stored in computer memory, and the types of operations that can be performed with it."

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?