What is the sum of 2.5 × 10^4 and 3.4 × 10^4? 0.59 × 10^4 0.59 × 10^8 5.9 × 10^4 5.9 × 10^8

Here, you'd combine like terms. 
2.5 + 3.4 = 5.9
10^4 + 10^4 = 10^8

5.9 x 10^8

Just a question- could you organize the data better? i just cannot tell which number are for which bakery. i will be happy to answer this question if you could do this for me! : )