352 . If you multiply 16 by 22 it will give u an answer of 352
Ok so you multiply -3 on both sides so on the right it is -48 and then the left the -3 is cancelled out and so you are left with -6+c . You add 6 on both sides and so it is -42=c so c=-42
The vertex of the absolute value function is -5
10) 11
Hope this helps!
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