6.

since

feet. Then 6*4=24 So the answer is C
7. 1200 m/8 cm = C. 1 cm = 150 m
8. A. Since 1 in = 3 feet then 6 inches = 18 feet (6*3=18) and 4 inches = 12 feet (4*3=12) so the dimensions of her room are 16'x12'.
B. A=lxw so 16*12= 216

Hope that helps
The answer is 500,000 because you have add a zero sense it's times 10
Y = mx + b
in this case m = 2 and b = 1 so
equation
y =2x + 1
hope this helps