Scale: 4 cm represents 1m The diagram shows of part of a wall to be tiled. The dimensions of the wall in the drawing are
8cm long and 4cm tall.
Kamran is going to cover this part of the wall with square tiles. Each tile has sides of length 10
cm.
The tiles cost 25p each.
Kamran spends £60 on tiles.
Use the scale shown to calculate the 'true' dimensions of the wall. Show that Kamran has
bought enough tiles. *

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?