Answer: 9x
Step-by-step explanation:
When adding X you simply add the numbers in front of X.
3+3+3=9 so you have 9x
think of it as this. If you have 3 apples and add 3apples and then 3 more appls. How many apples are there
3 apples+ 3 apples+ 3 apples= 9 apples
Answer:
A.3x - 3
B.12x - 11
C.9x + 11
D. -3x + 11
Step-by-step explanation:
Answer:
The water is 208.22ft from the tug boat
Step-by-step explanation:
The governing equation is 
y is the height above the ocean
x is the distance from the tugboat
if y= 6ft, the equation will now become

we can arrange this properly to form a quadratic equation by grouping like terms.

solving quadratically we have two values of x as 208.22ft and 0.873 ft.
We can take a more realistic value as a solution to our problems:
208.22ft
Answer:
yes
Step-by-step explanation:
4.2*3 is 12.6 when you divide 12.6 by 0.7 you get 18.
Follow the order of operations
1. parentheses (13+5) = 18
2. multiplication 21*(13+5) = 21*18 = 378
3. add 9 + 21*(13+5) = 9 + 378 = 387
Hope this helps!