Which conjunction or disjunction is equivalent to the open sentence |a – 7| ≤ 5? a. a – 7 ≥ 5 or a – 7 ≤ – 5 b. a – 7 ≥ 5 and a – 7 ≤ – 5 c. a – 7 ≤ 5 and a – 7 ≥ – 5 d. a – 7 ≤ 5 or a – 7 ≥ – 5

B.

This is the same as a-7≤5 and 7-a≤5.

So a≤12 and a≥2, which is written 2≤a≤12, so a lies between 2 and 12 or a has the interval [2,12].

Step-by-step explanation:

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:

hiking down a winding trail.

step-by-step explanation: