Answer:
take the population mean divided by four
Step-by-step explanation:
Answer:
18:162
Step-by-step explanation:
1:9
1+9=10
(1×180)÷10= 18
(9×180)÷10=162
Letter A is the answer because
4y = 15 - 3x
so y = 15/4 -3x/4
X=117 degrees
Y = 63 degrees
Z = 117 degrees
