To find out how many senior lunches the grant can provide, we need to divide the total grant amount by the cost per lunch.
The total grant amount is:
\[ 1.925 \times 10^6 \text{ dollars} \]
The cost per lunch is:
\[ 2.75 \text{ dollars} \]
Now we perform the division:
\[ \frac{1.925 \times 10^6}{2.75} \]
First, we divide the coefficients:
\[ \frac{1.925}{2.75} \approx 0.7 \]
Next, we retain the \(10^6\), so we multiply the result by \(10^6\):
\[ 0.7 \times 10^6 \]
So the number of senior lunches the grant can provide is:
\[ 0.7 \times 10^6 \]
Thus, the answer in scientific notation is:
\[ 0.7 \times 10^6 \]
So, the correct response is:
0.7×10^6.