Simplify t^7 × t^2: Exponent Multiplication Practice

To solve the problem of simplifying $t^7 \times t^2$, we follow these steps:

• Step 1: Identify the base and the exponents. Here, the base is $t$, the first exponent is 7, and the second exponent is 2.
• Step 2: Apply the exponent rule for multiplying powers with the same base, which states $a^m \times a^n = a^{m+n}$.
• Step 3: Add the exponents: $7 + 2 = 9$.
• Step 4: Write the simplified expression: $t^9$.

Therefore, after applying the exponent rule, the simplified form of the expression is $t^9$.

The correct choice among the given options is not specifically listed, but the simplification corresponds to $t^{7+2}$ before explicitly adding to get $t^9$.