Pls help I’ll brainlest ASAP

a. 1.24 • 10^4
step-by-step explanation:
6.2 • 10^7
just move the decimal point right 7 digits
62, 620, 6,200, 62,000, 620,000, 6,200,000, 62,000,000
and 0.5 • 10^4
repeat the same steps
5, 50, 500, 5,000
so 62,000,000/5,000
12,400
the only two possible answers could be
a. 1.24 • 10^4
12.4, 124, 1,240, 12,400 true
c. 12.4 • 10^11
124, 1,240, 12,400, 124,000
it’s already too much so it would be a

(1/x + 1)^2 + 6 (1/x + 1) +5