Answer : option d
4.4, 5.8, 7.2, 8.6, 10, …
First we find the common difference between two terms
5.8 - 4.4 = 1.4
7.2 - 5.8 = 1.4
8.6 - 7.2 = 1.4
10 - 8.6 = 1.4
So common difference is 1.4
To find recursive rule, we add the difference with previous term
Recursive rule is 
a1 is the first term so a1= 4.4
d is the difference = 1.4
So recursive rule is
, where a1 = 4.4
I’m not sure, you should install photomath tho it should say
Well c is the cost to rent the locker for 1 hour, the 1.5 is the rental time, so multiplied together, you get the 9 which is the total cost to rent the locker for the number of hours you had it for.
for example: if you were to rent the locker for 1 hour (t = 1) the equation would look like c(1) = total cost.
*hopefully this is making sense*
another example: if you wanted to find out what the base rate is to rent the locker for 1 hour, you would just solve for c in the given equation
c(1.5) = 9 c = 9/1.5 c = 6
V < -7
Divide by -2, then flip the inequality sign since you are dividing with a negative.