Abook store owner randomly samples 100 customers on two separate days to see what their favorite type of book is. the data shows the results of the two samples.

the book store owner expects 850 customers.

based on the samples, about how many mystery books will the book store sell?
enter your answer rounded to the nearest whole and .

answer: ur v dumb

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.