There are s students in Mrs. Kong's math class. If the class is divided into groups of 4 students for an activity, there will be a total of 7 groups. Which of
the following equations can be used to solve for the number of students in
the class?

s/4+7=1

4s=7

7s=4

s/4=7

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