Answer:
cosx=Adj/hyp
cosx=15/113
Multiples:7,14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119,126,133,140,147,154,161,168
Factors: 1, 7
ans:(x=6)
6x+54=90
6x=36
6x/6=36/6
x=6
Please see attachment
Step-by-step explanation:
(-4, 2)