A student filled a graduated cylinder with water and read the meniscus at 15.8 mL. The student then dropped a solid material into the graduated cylinder and the water level rose to 36.9 mL. If the solid material has a mass of 10g. Determine the density of the solid object. D= M/V PLEASE HELP ME!!!

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?