If each of the following is a part of a geometric sequence, find the missing terms. assume the ratio is positive in each case.
a. 7,_,_,21
b. 10, _,_,_1,
c. _, 7, _, 3
d. _, -3, _ -7

b) the dogs need to shift their focus to human scent.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

r and t.

both are 64 degrees.