Vasily states that−6(5g−7h+9−10g) can be rewritten as−30g+42h−54
.

Which of these explains whether Vasily is correct?

A
Vasily is not correct. He should have rewritten the original expression as −6(−5g−7h+9)
and then as 30g+42h−54
.
B
Vasily is correct. He can rewrite the original expression as −6(−5g−7h+9)
and then as −30g+42h−54
.
C
Vasily is correct. He can rewrite the original expression as −6(5g−7h+9)
and then as −30g+42h−54
.
D
Vasily is not correct. He should have rewritten the original expression as −6(5g−7h+9)
and then as 30g−42h+54
.

A. Vasily is not correct. He should have rewritten the original expression as −6(−5g−7h+9) and then as 30g+42h−54.

Step-by-step explanation:

Given the expression;

Rearranging the above, we have;

Simplifying, we have;

Multiply, to open the bracket;

Therefore, Vasily should have rewritten the original expression as −6(−5g−7h+9) and then as 30g+42h−54.  

found it xd it ok yt

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length