Answer: choice D
Step-by-step explanation:
An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.
in this exampke the constant(d) is -3
Adults equals 5 less than half the # of students
A= 1/2 S -5
3/4 x 144 = 108
108 x 5/9 = 60
B. 60 female students voted for you.
You set 49 equal to 8x - 15
So
8x - 15 = 49
+15 + 15
8x = 64
Then divide by 8
X= 8
