1. alexia started babysitting when she was in high school. she has built a reputation for herself and has become popular among the neighborhood parents. alexia charges $10/h and gets a $5 automatic tip. alexia needs $75 to buy a present for her mother. she wants to find out the minimum number of hours she needs to babysit at one job to get the money she needs. (5 points) a. write an inequality to show how to solve this problem. identify what the variable is and what it represents. b. solve the inequality to find out the minimum number of hours alexia needs to babysit. show your work.

Find the balance at the end of 4 years if 1000 is deposited at the rate of

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.

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0