3n - 1
When n = 1,
3n - 1 = 3*1 - 1 = 3 -1 = 2
When n = 2,
3n - 1 = 3*2 - 1 = 6 -1 = 5
When n = 3,
3n - 1 = 3*3 - 1 = 9 -1 = 8
Hence, the first three terms are 2, 5 and 8.
Answer:
40
Step-by-step explanation:
3.45(4) = 13.8
8.18(1) = 8.18
13.8 - 8.18 = 5.62
Answer: The last option, Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.
Step-by-step explanation:
We must follow the Order of Operations, also known as PEMDAS. See attached. Multiplication comes before subtraction, but Stacy subtracted 2 from 12 when she should have multiplied 2 by 2. This means the answer to your question is;
Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.