Ummm let’s see.. yah I have no clue sorry buddy your just gonna have to get this one wrong
ST is not he midpoint of SN because y=15 and if you plug in you get SN to be 150 but ST is only 64 which is not half of 150
Answer:
a=-7.68
Step-by-step explanation:
3a+13.61=-9.43
-13.61
_____________
-23.04
3a=-23.04
-23.04/3= -7.68
6 times 79 = 474 so the 79th term is 474
