Lily built an orange shelf and a brown shelf to hang in her rom. The orange shelf is 5 feet 6 inches long. The brown shelf is tw
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B. (k+10f)(k-5f) you can tell in 2 ways. 1. if the second sign is neg then the signs in the factors are going to be one neg and one positive so that knocks out C and D. Then you look at the second term and since the 5 is positive then the 10 has to be positive so you end up with a positive 5kf.
The second way is to FOIL them out. When you check B you get
combine your like terms and you have your original expression of 
Hope that helps
The second way is to FOIL them out. When you check B you get
Hope that helps
Multiply 2/1 or 2 on both sides to get "y" by itself
y ≤ -14