Answer:
36.88
Step-by-step explanation:
6.1 + 6.3 = 12.4
3.2 x 12.4 = 39.68
39.68 - 2.8 = 36.88
C real numbers is the answer
Answer:29.7
Step-by-step explanation:
30/100
9 x 3/10
90/1 x 10/3 = 90
90 divided by 30 is 30
A sample size of 80 will be most reliable, because there is a less likely chance for error.