6x2/5 will be greater or less than 2/5

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

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.

The quadratic function h(t)=-16.1t^2+150 choose the graph representation