Answer:
y=x+-2
Step-by-step explanation:
-3+-2=-5
0+-3=2
3+-2=1
Answer:
9 students
75 percent of 12 = 9
Search for calculator. Type, "75" then click the percent symbol, then type "12." It should give you the right answer.
For sake of convenience, reverse the series, then it would be:
21,19,17.....7
a=21, d = -2,
s(4) = 4/2 (21+15)
s(4)=2(36)
s(4) = 72