What do scientists do when they run experiments? 1. write down their observations
2. walk away from the experiment
3. change parts of the experiment
4. develop a hypothesis

I will mark brainleist, only if you get the answer correct, scam answers will be reported.

5.72e -18 +3.35e -13
———————————
-5.50e +6

9.07e -31
—————
-11/2 + 6

907/100e -31
————————
-11e + 12
————
2

907e -3100
———————
100
————————-
-11e + 12
—————
2

907e -3100 2
—————— X —————-
100 -11e + 12

907e -3100
——————
50(-11e + 12)

907e -3100
———————or 0.7089=> answer
-550e + 600