Surface area question need for tomorrow please help and text me in private if you can do more with me to help me understand

If the measure of xyz is 81 what is the measure of yz

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.

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?