Consider the sequence 1, 1, 1, 3, 5, 9, 17, 31, 57, … where each number beyond the third is the sum of the previous
three. let wn be the points with the nth, (n + 1)th, and (n + 2)th terms of the sequence.
a. find a 3 × 3 matrix a so that awn = wn+1 for each n.
b. what is the 30th term of the sequence?
c. what is a−1? explain what a−1 represents in terms of the sequence. in other words, how can you find wn−1 if
you know wn?
d. could you find the −5th term in the sequence? if so, how? what is its value?

i can answer this question sweetie!

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

a ≈ 172.05

step-by-step explanation:

the pictures.