A principal orders t-shirts and wants to check
some of them to make sure they were printed
properly. She randomly selects 2 of the 10
boxes of shirts and checks every shirt in those 2
boxes.
What type of sample is this?

A. Simple random sample
B. Stratified random sample
C. Cluster random sample
D. None of the above

Solve the system of equations. y= 2x y= x^2 - 15

What is the expression in factored form? 3x^2 + 18x + 24 a. 3(x+2)(x+4) b. 3(x-2)(x+4) c. 3(x-2)(x-4) d. 3(x+2)(x-4)

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?