What is the value of - 9r - 7 when r=2

20. A fair coin is flipped three times. Find the expected number of heads.

Thirty mechanics in an automotive shop are randomly selected to participate in a study comparing two oil changing techniques. They are randomly assigned one of the two techniques.

Asher cut five sets of boards to build triangular tables. Which of the following sets of side lengths would form tables shaped like a right triangle?

The wool sold 4038 tickets to their soccer game the leopard sold 6224 tickets to their game how many more tickets did the leopard so then the wolves

Sandy had 219 football cards. She bought 57 more at a garage sale. How many did she have then?

8:2 in its simplest form

14+3 (12+2) - 5 to the second poer

According to - - / self interest and competition act as blank guarding firms in a market-based economy.

What is S10 for 1+3+9+27 ... ?

Which equation represents a circle with a center at (-3, - 5) and a radius of 6 units? A: (x - 3) 2 + (y - 5) 2 = 6 B: (x - 3) 2 + (y - 5) 2 = 36 C: (x + 3) 2 + (y + 5) 2 = 6 D: (x + 3) 2 + (y + 5) 2 = 36