HEL 15.

Noah serves 8 cups of coffee every 9 minutes.

Using y for the number of cups of coffee, and x for the amount of minutes that have passed, write an equation that represents this proportional
relationship.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

The answer is 7.2 how would you put this as money

Select the two binomials that are factors of this trinomial x^20 - x - 20