Answer:
x =550
y=250
Step-by-step explanation:
.2x + .04y = 120
x + y = 800
75/135 and 18/135
just times 9 and 15, 9 and 2, and then 15 and 5
Answer:
1,908
Step-by-step explanation:
Answer:
1 (anything with the exponent of 0 always equals 1)
Step-by-step explanation:
Answer:
B. Stratified random sample is the correct answer