Hey there!
Let's call this "number" x. We want four times the sum of this number and 15 to equal at least 120.
Therefore, we want this number times four plus fifteen to be greater than or equal to 120. We have:

Distribute:

Subtract:

Divide:

Your answer is C.
Hope this helps!
Answer: k ≥ -1
Step-by-step explanation:
7k - 2 ≥ -9
add two to both sides
7k ≥ -7
k ≥ -1
Answer:
A) x=4
B)x=
+3 or 7.24
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
No matter what y is, x will always be 1.
(1,-4)
(1,-3)
(1,-2)
(1,0)
(1,1)
(1,2) and so on and so on.