Answer:
Negative thirty
Step-by-step explanation:
The answer to the missing value is X = 3
Answer:
No, she is wrong.
Step-by-step explanation:
A diagonal of square or rectangle is equals to hypotenuse of a triangle. So you can apply Pythagoras Theorem to solve it :

Rectangle,



Square,



Given that QS is 17.9 and OM is 11.3. So SQ is not 2 times greater than OM.

Answer:
14%
Step-by-step explanation:
42 is divisible of 3, the same with 300, if you put this equation into a fraction (42/300) and divide by 3, you should end up with 14/100 which is equal to 14%.
Divide both sides by the number in front of x
so
4x=-16
x=-4
12=-3x
x=-4
-21=7x
x=-3
6x=-30
x=-5