Question 216781
The problem gives you an "equation":
a x 3
.
Then, they want to know the result if:
a=2, a=5, a = 1 and a =4
Basically, replace 'a' with the value and multiply.
.
Set up a table.  
1st column: a
2nd column: a stuffed into the equation
3rd column: resultant value
.
 a | a x 3  | result
=======================
 2 | 2 x 3  |  6
 5 | 5 x 3  |  15
 1 | 1 x 3  |  3
 4 | 4 x 3  |  12