The correct option is : 
<u><em>Explanation</em></u>
Suppose, the volume of the fish tank is 
ft³
The density of the fish tank is 0.5 fish/ft³. It means, <u>the number of fish in 1 ft³ volume is 0.5</u>
So, the number of fish in ft³ volume will be: 
Given that, there are 30 fish in the tank. So, the equation will be......
Thus, the volume of the tank is 60 ft³
( f + g ) (x) = –2x + 6
( f – g ) (x) = 8x – 2
( f × g ) (x) = –15x2 + 2x + 8
(
f
g
)
(
x
)
=
3
x
+
2
4
−
5
x
A
...........................
The second number in the sequence will be 53.
<em><u>Explanation</u></em>
The <u>difference between any two consecutive integers is always 1</u>.
Suppose, the five consecutive integers are: 
, 
, 
, 
and 
Given that, their sum is 270. So, the equation will be......
Thus, the second number in the sequence will be: 
Answer: infinite solutions
Step-by-step explanation:
(−3) (4) + (−3) (−3x) = 9x + −12
−12 + 9x = 9x + −12
9x − 12 = 9x − 12
9x − 12 − 9x = 9x − 12 − 9x
−12 = −12
−12 + 12 = −12 + 12
0 = 0
