Which of the following statements represents one of the differences between an experiment and an observational study?

Use the gcf of 60 and 100 to reduce 60/100.

The average money spent on cigarettes is 2,190 a year. If a 16 year old starts smoking and quits at 30, how much money will be spent during that time?

In january you deposit $150 into your checking account. Every month after that you deposit 10% more than you did the month before how much did you deposit in august? Math

Six x plus nine over nine equals negative five

If, for a random sample of 16 days, the sample mean ends up being exactly one standard deviation of x above the population mean, what is the sample mean for those 16 days?

Factor each expression and explain how. 52. w^2 - 15w - 54 54. -2h^2 + 4h + 70

What is the solution to 2.1m = 6.3? A. m = 8.4 B. m = 3 C. m = 3.2 D. m = 4.2

Select the two figures that are similar to the 9 by 6 figure that is shown.

What is the quadratic function that is created with roots at 2 and 4 and a vertex at (3, 1) ?

Four candidates are running for president of the student council. Three other candidates are running for vice-president. How many different ways can the two offices be filled? a. 6 different ways c. 12 different ways b. 10 different way d.