3) A department store is running a promotion one Saturday by giving out coupons for $10 of free merchandise. Based on date collected in the past, only % of customers who shop on that Saturday use the coupon, but do not purchase any other merchandise. However, 1/3 of customers purchase $40 in merchandise and then use the coupon. Another 1/3 of customers use the coupon after ringing up a total of $75 in merchandise. The remainder of customers who come in the store do not take advantage of the promotion at all. a) Find the expected value of the promotion per customer for the department store.

b) If the store has 720 customers on the promotional Saturday, what is the expected revenue for the day?​

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

answer: 0.64

step-by-step explanation:

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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