An iPhone costs £789 in London, €925 in Paris and $1,129 in New York. Using £1 = €1.17 and £1 = $1.38, state the lowest price of the iPhone in £.
Give your answer to 2 dp.
£​

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?