If x=2 and y=5 find the values of :
`7xy`

Answer

To find the value of the expression \( 7xy \) when \( x = 2 \) and \( y = 5 \), we can follow these steps:

### Step 1: Write down the expression
The expression we need to evaluate is:
\[ 7xy \]

### Step 2: Substitute the values of \( x \) and \( y \)
We know that \( x = 2 \) and \( y = 5 \). Now, we will substitute these values into the expression:
\[ 7(2)(5) \]

### Step 3: Perform the multiplication
First, multiply \( 2 \) and \( 5 \):
\[ 2 \times 5 = 10 \]
Now, substitute this result back into the expression:
\[ 7 \times 10 \]

### Step 4: Multiply by 7
Now, multiply \( 7 \) by \( 10 \):
\[ 7 \times 10 = 70 \]

### Final Answer
Thus, the value of \( 7xy \) when \( x = 2 \) and \( y = 5 \) is:
\[ \boxed{70} \]

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