In a titration experiment, a 10.0 mL sample of hydrofluoric acid, HF(aq), is titrated with a with 0.223 mol/L of NaOH(aq). After 3 trials, it was determined that an average of 37.55
mL of the sodium hydroxide solutions was required. Calculate the concentration of the
hydrofluoric acid.

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.