a) x - 1/10 = 1/15

x=1/15+1/10

b) -4/21 - x = -3/7

c) x + 1/2 = 3/4 - (-1/2)

x+1/2= 5/4

x= 5/4-1/2

x=3/4

Vay x=3/4

d) 4/7 - x = 1/3 - (-2/3)

a) 3/4 + -1/8 = 5/8

b)-5/12 + -7/24 = -9/8

c) 4/21 - -5/28 = 31/84

d) 1 + -7/28 = 3/4

e) -4/3 - 17/6= -25/6

f) 1/3 - ( 1/2 +1/8 )= -7/24

g)1/21 - ( 1/7 - 1/3 ) = 5/21

h)1/2 - 1/4 + 1/13 + 1/8= 47/104

1,Australia in the south Pacific

2,The population is Sedney is nearly four million

3,No it isn't

4,It stretches 3,223 miles from East to West and from the North Pole to the US border

5,The languages spoken in Canada are English and French

6,The weather in winter in Canada is cold

7, It is surrounded by 5 countries: Austria and Liechtenstein to the east, France to the west, Italy to the south and Germany to the north.

A,T

B,T

C,F

D,T

E,F

F,T