Answer:
Domain is 0 to 50.
Step-by-step explanation:

Answer:2x+7=9
Step-by-step explanation:
When it says seven more you add that to the end of the equation and set it equal to 9 then product of a number (x) and 2 so it would be 2x. Hope this helps!
Answer:
Hey there!
The equation is x+2x+5+6x-17+3x+2, or 12x-10
12x-10=50
12x=60
x=5
Let me know if this helps :)
Answer:

Step-by-step explanation:
Each of the small triangles are right, so we can add up all the small triangle's areas to find the total area.
The 4-by-10 triangle: The area is
.
The other 4-by-10 triangle has the same side lengths and hence the same area, so the area is
.
The 4-by-4 triangle: The area is
.
The other 4-by-4 triangle has the same area,
.
The total area is
.
Answer:
-9
Step-by-step explanation:
yu subtract 21 from 30 and and just add a negative before the answer