Using the extended euclidean algorithm, or otherwise, calculate the preferred in- verse 101^-1 mod 679. use hand calculation and show all working. [4 marks]

Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room

Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.

If the class creates a histogram of the data in table, how many students are in the range 12cm to 13.9 cm