1. Mark charges $10 an hour to babysit with an additional flat fee of $20 for each babysitting job. He wants to purchase a new game system that will cost him $123.50. Write an inequality to show the least number of complete hours he needs to babysit if he has one job scheduled. A. Solve the inequality that you created.

B. Mark is considering changing his rate to $ 15.00 an hour with no flat fee. What effect would this change have on the hours that Mark needs to work to buy the gaming system?

C. What conclusions can you draw about Jamie charging the flat fee and not charging the flat fee?

Please help!!

On a piece of paper graph f(x)=5•(0.4)^x

Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.

Abowl contained 270 starbursts of all different colors. if the probability of picking a yellow is 1/9, then how many yellow starbursts are in the bowl ? ?