A) $148.00
B) $160.00
C) $240.00
D) $252.00

D) $252.00

Step-by-step explanation:

Regular Price = $400

Price at Saturday with 30% discount = (400/100) x 70 = $280

Price with additional 10% discount on discounted price = (280/100) x 90 = $252

B. $160.00

Step-by-step explanation:

Given the regular price of the computer as $400.00

Discount is 30% on a Saturday and addition 10% if you buy before 9am .

Lee buys before 9am , so his discount is 30% + 10%

= %40

Amount to be paid by Lee = 40% /100% x $400.00

0.4 x $400.00

$160.00

Lee will pay $160.00 if she buys the computer before 9am

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: