A student is trying to identify the composition of a pure metal block by determining its density. The student records the mass of the sample to be 25.0 g. The rectangular block is 3.00 cm × 3.00 cm × 1.40 cm. Calculate the density (in g/cm3). Express your answer to the correct number of significant figures.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

What else equals 42 and 30 for multiply