#1. 1000
#2. 1/45 (decimal is .02 with the line above the two
#3. 32/9
#4. 1/20 (decimal form .05
#5. 4
#6. 47/4 (decimal is 11.75)
#7. 1/4 (decimal 0.25
#8. 1/2 decimal is 0.5
#9. 45
#10. 12
I really hope this help
By substitution is how to solve
2x-3y=21
y=3-x
2x-3(3-x)=21
2x-9+3x=21
5x=30
x= 6
now substitute our x value into y=3-x
so we get
y=3-6 = -3
so x=6 and y=-3 hope this helps!!!!! Thank you!

The account will have decreased by $2640 after 2/3 year.
Answer:
54m^2
Step-by-step explanation:
Each square has a equal sides, which is 3m
in order to find the surface area, it's
Formula : Base x height = Area
The total surface area would be all the area's added together
3x3=9cm^2
so each square is 9m^2
there are 6 squares so
9+9+9+9+9+9=54m^2
or you can do 9x6=54m^2
Answer:
Two subsets that form set of real numbers
You can take positive numbers and negative numbers subset
One subset become (- infinity,0]
other subset (0, infinity)