Mr Langley sold all but 10 of his old computers for R500 each. He received R329 ore 7 more boys than girls in a class of 25. How many girls are there?
is cut into two, so that one piece is three times as
balls of wool as
cach packet?
k)
from the sale. How many computers did he originally have?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next