-3b+22=7 step by step

b = 5

Step-by-step explanation:

Whatever you do to one side, you must do to the other side in order to make the equation stay true.

1. Subtract 22 from both sides.

-3b + 22 - 22 = 7 - 22

-3b = -15

2. Divide both sides by -3.

-3b/-3 = -15/-3

b = 5

^ That's the final answer!

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: