Mary can either take her lunch or buy it at school. it cost 1.95 to buy lunch. if she wants to spend no more than $30 on lunch per month, how many lunches can she buy at most?

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

Who long does it take to drive 150 miles at 45 miles per hour

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