Define the type of sequence below. 7, 14, 28, 56, 122,

 The given sequence is a GEOMETRIC sequence with first term 7 and common ratio 2.

Step-by-step explanation:  We are given to define the type of the following sequence :

7,   14,   28,   56,   122,   .    .   .

Let us denote the n-th ter of the given sequence by

Then, we see the following relation between the consecutive terms of the given sequence :

Therefore, we get

That is, there is a common ratio of 2 between any two consecutive terms of the sequence.

Thus, the given sequence is a GEOMETRIC sequence with first term 7 and common ratio 2.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

i believe that the answer is

b. y-1=-2(x-4)

hope this !