Coin Calculation plz help

I do not agree with either of them.

2^28 is the number 2 multiplied 28 times.

2^28 = 268,435,456

Step-by-step explanation:

Since exponents are repeated multiplication, you would have to multiply "2" 28 times.

Like this, 2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2.

The product of 2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2 is 268,435,456.

Therefore, I do not agree with either of them.

my guess would be b and d, but i didn’t actually get out the pen and paper. lol