For this case what we have to take into account is the following variable:
x = represent the unknown number
We now write the following inequality:
"four times the sum of number and 15 is at least 20"
4 (x + 15)> = 20
We clear the value of x:
(x + 15)> = 20/4
(x + 15)> = 5
x> = 5 - 15
x> = - 10
The solution set is:
[-10, inf)
Answer:
all possible values for X are:
[-10, inf)
Y=15x for the first and answer C for the second
Hey there,
Your question states: You have a 332 feet fencing to enclose a rectangular region. What is the maximum area.
Your correct answer would be
6,889.Reason/explanation: The formula that we would use is



_____________________________________________________________
So by this, now that we know that

We do . . . 83 × 83. . .
And you final answer would be
Option A.) 6,889Hope this helps you!
~Jurgen