Marc enjoys running. The graph shows how far Marc ran over time. How many
meters does Marc run in 7 minutes?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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

Asequence is a function whose is the set of natural numbers