Answer:
21 tribbles on the 7th night
Step-by-step explanation:
every night 3 tribbles appear meaning that the tribbles spawn rate is y=3x
y= number of tribbles
x= number of nights
The correct answer for 12 is B
Answer:
The cost of 7 roses and 8 petunias is $9001
Step-by-step explanation:
We are given expression for cost as

where
r is number of roses
p is petunias
We are given
r=7
and
p=8
so, we can plug here

now, we can simplify it
and we get

So,
The cost of 7 roses and 8 petunias is $9001
Answer:
10
Step-by-step explanation:
The area would be 9 because the perimeter of the regular quadrilateral would be 3 and if you multiply 3 by 3 you have 9.