Jack popped some popcorn, but 3 of the 150 did not pop. determine whether or not each popcorn snack below has the same ratio of unpopped to total kernals as jack's popcorn

b and c

Step-by-step explanation:

Jack popped some popcorn, but 3 of the 150 did not pop.

the ratio of the jack's popcorn =

                                                   =

                                                  = 1 : 50

We will go through all the other given ratio to find whether they are same ratio of Jack's or not.

a. 2 unpopped out of 75 kernels  =

                                                       = 2 : 75  This is not a match

b. 2 unpopped out of 200 kernels =

                                                         =

                                                         = 1 : 50   This is same

c. 1 unpopped out of 50 kernels =

                                                     = 1 : 50 This is also same

So b and c has the same ratio of unpopped to total kernels as Jack's popcorn.

pi x^2

step-by-step explanation:

pi times x squared

the answer is  

a.

28 ft2

step-by-step explanation: