A buffered solution . Select the correct answer below: fails to keep hydronium and hydroxide ion concentrations nearly constant when strong acids or bases are added. maintains a constant or nearly constant pH when small amounts of strong acids or bases are added. acts to keep the hydroxide ion concentration nearly constant. acts to keep the hydronium ion concentration nearly constant.

Step-by-step explanation:

Finn earns $5 for each crate of oranges he sells in a week. This means that if she sold z crates in a week, the total amount that she would earn is 5 × z = 5z

At the end of the week, Ellie has earned $20 more than Finn. The following expression shows Ellie's earnings :

20 + 5z

Therefore, in the expression, the second term represents the total amount that Finn earned for selling z crates.