The equation (form) is: 
The solution of the equation is: 
Explanation:
First, let's call the number we are going to solve for "x".
Then two thirds of this number can be written as:

Then "plus 4" means add 4 we get:

"is 7" means that the above expression is equal to 7 (as follows):

The solution of the above equation is:

There would be 8 tigers in the exhibit. Hope this helps.
Step-by-step explanation:
the patern (3n - 1) is incorrect,
the correct pattern should be
Tn = n² + 1
Answer:
w = 80/9 ft.
L = 640/9 ft.
Step-by-step explanation:
L = length w = width
2w = L/4 so 8w = L
160 = 2L + 2w
160 = 2(8w) + 2w
160 = 16w+2w
160 = 18w
80/9 = w
Answer:
THREE HOURS
Step-by-step explanation:
34.50-12=22.5
22.5/7.50=
=3