Well, if you notice, is just an arithmetic sequence, is adding 2 to get the next term.
so the last term is 21, so the one before that has to be 21-2 or 19, and the one before that 17 and the one before that 15.
15+17+19+21.
X = -2
y = 5
check out the photo for steps
Answer:
Y=6
Step-by-step explanation:
Answer:
1/4, 3/9, 4/5, 5/12
Step-by-step explanation:
