Rearrange the equation so m is the independent variable.

7m + 2 = 7n - 5

M = n - 1

Step-by-step explanation:

7m + 2 = 7n - 5

Group like terms

7m = 7n - 5 - 2

7m = 7n - 7

7m/7 = 7n /7 - 7/7

M = n - 1

m=n-1

7m+2=7n-5

7m+2-2=7n-5-2

7m=7n-7

divide both sides by 7 the answer is at the top

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: