The part of the floor is in the shape of a triangle as shown. 305 cm 371.5 cm George buys tiles in packs. Each pack covers 1m2 and costs £39.95 The tiles can be cut and joined. George gets off the cost of the packs of tiles. ​

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correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

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