Answer:
A
Step-by-step explanation:
The sequence of positive odd numbers is
1, 3, 5, 7, ......
This is an arithmetic sequence with common difference d
d = 3 - 1 = 5 - 3 = 7 - 5 = 2
The sum to n terms of an arithmetic sequence is
= [2a + (n - 1)d ]
where a is the first term
here a = 1, d = 2, n = 12, hence
= [1 + (11 × 2) ]
= 6 [ 2 + (11 × 2) ]
= 6 × 24 = 144 → A
The answer would be C. a > 2
If a > 2, then a could = 3
n = 3*3 - 6
n = 9 - 6
n = 3
3 is a positive number
Answer:
Step-by-step explanation:
24.80+(24.80-40%)+(24.80-50%)
24.80+14.88+ 12.40
total of the bill before tax and tip is
$52.08