Arock is placed in a graduated cylinder to determine its volume. the following data are obtained. what is the volume of the rock?
initial volume of water: 13.7 ml
final volume of water: 28.9 ml

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

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

Ahousekeeper mixed 5 gallons of blue paint with every 9 gallon of yellow paint in order to make a green paint which ratio of gallon of blue paint to gallon of yellow paint will make the same shade of green paint