Out of 1,100 discs tested, 13 are defective. estimate the number of defective discs in a batch of 41,000. a. about 485 discs b. about 970 discs c. about 4,850 discs d. about 49 discs

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions