Answer:
32.5
Step-by-step explanation:
<u><em>Mean = Sum of observations / Total number of observations</em></u>
Mean = 2+43+67+18 / 4
Mean = 130/4
Mean = 32.5
You subtract 4 from 19=15, then sunbratce 6y from 3y= -3y. divide 15 by -3= -5. y= -5
X = womens, y = mens
45x + 50y = 2500....if there is no women, then x = 0
45(0) + 50y = 2500
50y = 2500
y = 2500/50
y = 50.....there would be 50 male customers to meet his expenses
31) there are 12. The distance between them is 10-4=6. This is halfway around so there are 12 (think of a clock face, 4 is opposite 10 and there are 12 numbers.)