Simplifying Fractions  Simplify each fraction to its lowest terms.

1) 9 =
18

8) 4 =
16

15)

21 =
63

2) 8 =
10

9) 18 =
36

16)

30 =
84

6
3) =
8

6
10) =
42

50
17) =
125

4) 5 =
20

13
11) =
39

72
18) =
108

18
5) =
24

21
12) =
28

49
19) =
112

6
6) =
9

12
7) =
15

63
13) =
77

36
14) =
40

4

240
20) =
320

120
21) =
150

Question and answers are in the attached picture. you so much in advance.

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities