Standard form is just putting (in this case) variables in alphabetical order. First we simplify- 2x+4=4y would become 1/2x+1=y. This is already in standard form, as numbers w/o variables come at the end. simplifying the next one is more tricky. first you get a variable/number alone-
9-2x-2y=4x+3
9-2y=6x+3
6-2y=6x
1-1/3y=x
1=x+1/3y
3=x+y
x+y=3
sorry if I was wrong and not of any help, But I do believe this is correct.
Answer:
0
Step-by-step explanation:
so p can be larger than -12 or can be -12
so the only answer there is 0
Surface are of a cube = 6a^2
surface area
= 6 (4.5)^2
= 6 x 81 /4
= 243/2
= 121.5
2/3 was the rate per hour of the water level change because you would simplify 4/6 and you would get 2/3.