An unknown bacterium has a length of 2.7 x 10-5 cm.
Another bacterium has a length
of 5.2 x 10-4 cm. What is
the difference in the lengths of
the bacteria?

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).