Answer:
a. x=600
b. y=60
c. x = 150 and y = 45
Step-by-step explanation:
0.25x+2.50y=150
The answer is "It is not a valid sample because it is not a random sample of the population".
I had this test and that was my answer, and it was correct.
2 dollar
19.94 feet
Using trigonometry