Answer:
I believe it is C
Step-by-step explanation:
Please correct me if i am wrong ^w^
Answer:
$14
Step-by-step explanation:
80% of $70 is $14, saving him $56
X+y=11
22x+15y=228
y=11-x
22x+15y=228
22x+15(11-x)=228
22x+165-15x=228
7x+165=228
7x=63
x=9
9+y=11
y=2
The solution to the system of equations is (9,2)
X=117 degrees
Y = 63 degrees
Z = 117 degrees