H NE
T THE
25
23
30
35
O
a)
25, 18, 22, 24, 28, 30, 35, 40,25, 18, 25,22,25,24,28,30,25,22,
18,28,24,35,30,25,40,25,18,22,18, 30
years for 30 teachers of a school.

25

Step-by-step explanation:

H

NE

T THE

25

23

30

35

O

a)

25, 18, 22, 24, 28, 30, 35, 40,25, 18, 25,22,25,24,28,30,25,22,

18,28,24,35,30,25,40,25,18,22,18,30

years for 30 teachers of a school. =25

4 packs of water and 7 packs of candy bars

step-by-step explanation:

35x4=140

140/20=7

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25