Robert decides to start working for the local ridesharing company. He has a large 12-passenger van and thinks he will be in big demand at the airport. He tells his personal car insurance company that he is driving for a ridesharing company, and he needs some additional insurance. He is denied additional coverage. Why? 1. there is no such thing as ridesharing insurance.
2. He lives in a state that doesn’t offer ridesharing insurance.
3. The city he lives in is too small for him to qualify for ridesharing insurance.
4. Many insurance companies will not insure high-occupancy vehicles under their ridesharing policies.

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?

Five infinity stones cost $16.80. what is the price per infinity stone ?

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?