Rosa finishes the trail first. How long, in minutes (min), does she have to wait for Peng to finished​

What does x = in this equation x+3+2x=x+5

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

What are the greatest common factor of 75 and 30