Raul tried to evaluate an expression step by step. 3 − ( − 5 ) − 7 = 3 + 5 − 7 step 1 = 3 + 2 step 2 = 5 step 3 = = = 3−(−5)−7 3+5−7 3+2 5 step 1 step 2 step 3

None of those are technically correct. 9.7 x 104 is actually 1,008.8, but if that answer was a choice, it would be that one. if you meant 9.7 times maybe a thousand or more or divided by 10 or more, than the answer choices would be correct, but other than that, they actually arent.