Answer:the answer is a
Explanation:i did this in third grade
Answer:
Sales tax would be an example of a regressive tax because people with higher incomes will spend more on things such as food and clothing causing them to pay more in sales tax than someone with a lower income who will spend less on clothing and food.
Explanation:
Answer:variable - interval
Explanation: In the this scenario, The humanities instructor is using a variable-interval schedule of reinforcement. The instructor used the word 'surprise' meaning the time and date of the test isn't fixed and the quizzes will come up at unpredictable time intervals. This kind of reinforcement results in a steady response rate as it keeps students on their toes simply due to the fact that they have no idea of when the quizzes are coming up.
