1) an = a1 + d*(n-1) => a20 = -4 + (-9)*19 = -4 - 171 = - 175
1) ---> C)
2) a81 = 20 + 4*80 = 340;
2) ---> A)
3) a12 = ?
3) ---> B) or D).
2pm minus 30 minutes minus another 30 minutes, is 1pm.
Answer:
y=px
so the answer would be $49.95
pretty sure
Step-by-step explanation:
Answer: 10
Step-by-step explanation: