I’m not sure of the context of your class, but the second choice will give you -21 and the third one will give you -15. The first and last choice are positive, so just between those two
Number 4 is arithmetic explicit
Number 1 is arithmetic recursive
Number 2 is geometric explicit
Number 3 isgeometric recursive
Answer:
1,020 seconds
Step-by-step explanation:
we know that
To find out how many seconds after Kristen gets home is her dinner ready, subtract the time Kristen gets home from the time Kristen's dinner is ready
so

Remember that

Convert minutes to seconds

The formula is
YC x YD = AY x YB
fill in what we know:
18 x 6 = 9 x YB
108 = 9 x YB
YB = 108 / 9
YB = 12