Leah and Christopher work at a dry cleaners ironing shirts. Leah can iron 25 shirts per hour, Christopher can iron 15 shirts per hour. Leah can Christopher worked a combined 13 hours and ironed 265 shirts. Write a system of equations that could be used to determine the number of hours Leah worked and the numbers Christopher worked. Define the variables that you use to write the system.

42

step-by-step explanation:

256/6=42

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:

figure c

step-by-step explanation:

hope this .