Answer:
A. 2^11
Step-by-step explanation:
The exponent rule you want to use here is that, when multiplying numbers with the same base, you add their exponents and keep the base. Here, you're explicitly being told to multiply 2^4 and 2^7, meaning you should add 4 and 7 and make the sum the power you're raising 2 to. 4 + 7 is 11, so the answer is A. 2^11
B is wrong because you do not multiply the exponents.
C is wrong because there is no multiplication involved at all... strange.
D is wrong because you do NOT multiply the base. Keep it!
