C, her results are very close to one another
Answer:
$1,500
Step-by-step explanation:
70*20 is 1,400, and 20*30 is 600. Those together make 2,000 sq. in. Multiply that by 0.75 and you get $1,500. Hope this helps!
The first step is to set one equation equal to x or equal to y.
Ex. y = ..... or x = .....
The next step is to substitute that equation into the second equation in place of the x (or y), whichever you set it equal to.
Ex. x + y = 3
2x + y = -1
y = -x + 3 2x + (-x + 3) = -1
x + 3 = -1
x = -4
y = -(-4) + 3 y = 7 (-4,7)
Answer:
7xy + 2x^2t
Step by step explanation:
You just group the like terms and simplify (pay attention to the signs)
5xy + 2xy = 7xy
-1x^2t + 3x^2t = 2x^2t
So the answer is : 7xy + 2x^2t
