Translate each situation into an equation:
1) janine, who bought $15 worth of make up, spent $6 less than leah spent.
2)rob, who has all 13 girls' phone numbers that are in his homeroom, has 3 more than half the number of girls' phone number that jay has.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered