9514 1404 393
Answer:
geometric sequence
Step-by-step explanation:
The terms of the sequence have a common ratio of -12/3 = -4, so the sequence is geometric. The general term is ...
an = 3(-4)^(n-1)
so the sum can be written as ...

(Note the summation starts at n=0, corresponding to a first term of 3.)
Answer:
2, 3 and 7,8
Step-by-step explanation:
Step-by-step explanation:

Answer:
3/4
Step-by-step explanation:
3/4 as a decimal is .75
.75>.73
Answer: 4
Step-by-step explanation:
#1: 12 pennies
#2: 2 pennies and 2 nickels
#3: 2 pennies and 1 dime
#4: 7 pennies and 1 nickel