873chrisanswers

answer 1

__**Question 1**__

67,71,71,72,75,88,90

mean - mode - 71 median - 72 range - 23

__**Question 2**__

A square root is the root of a number, or is the perfect square of a number.

the square root of 25 is 5, because 5 x 5 = 25

__**Question 3**__

No because, 100 x 5%= 5 100 x 15% = 15 100 - 5 = 95 95 - 15 = 80

100 x 20%= 20 100 - 20 = 80

__**Question 4**__

2,4,8,16,21

__4 = 2__ 8 = 16

2,4,8,11,16