What is the value of `(7.5xx7.5+37.5+2.5xx2.5)?`

Options

A. 30
B. 60
C. 80
D. 100

Answer

To solve the problem \( (7.5 \times 7.5 + 37.5 + 2.5 \times 2.5) \), we can follow these steps:

### Step 1: Rewrite the expression
We start by rewriting the expression clearly:
\[ (7.5 \times 7.5) + 37.5 + (2.5 \times 2.5) \]

### Step 2: Calculate \( 7.5 \times 7.5 \)
Next, we calculate \( 7.5 \times 7.5 \):
\[ 7.5 \times 7.5 = 56.25 \]

### Step 3: Calculate \( 2.5 \times 2.5 \)
Now, we calculate \( 2.5 \times 2.5 \):
\[ 2.5 \times 2.5 = 6.25 \]

### Step 4: Substitute the values back into the expression
Now we substitute these values back into the expression:
\[ 56.25 + 37.5 + 6.25 \]

### Step 5: Add the numbers
Now we can add these numbers together:
\[ 56.25 + 37.5 = 93.75 \]
\[ 93.75 + 6.25 = 100 \]

### Final Answer
Thus, the value of the expression \( (7.5 \times 7.5 + 37.5 + 2.5 \times 2.5) \) is:
\[ \boxed{100} \]