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!!!

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.