Step-by-step explanation:
The given inequality is

Subtract 10 from both sides


Divide both sides by 5 to get:

We draw a closed circle at 5 and draw the arrow to the left.
See it in the attachment.
That is too small to be an improper fraction.
P = 2(L + W)
P = 264
W = 54
264 = 2(L + 54)
264 = 2L + 108
264 - 108 = 2L
156 = 2L
156/2 = L
78 <=== Length is 78 yards
20 mitiplay by 18 thats the answer
We have 35 - 5 = 30 levels left to beat.
The question is asking us for the levels left to beat, to the ones that already have been beaten:
30 : 5
Simplified;
6 : 1