A book 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 number in the box.

right

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

48 / 6 = x

in this case, x will equal the amount of money in each card!

x therefore will be 8.

trent had $8 in each birthday card.

there were a lot of them but the first one to pop up on a google search was bts