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Sales tax is 7%. If c represents the retail cost of an item, which of the following expressions represent(s) the total cost of the item? multi choice answer
c - 0.07c
0.07c
c + 0.07c
1.07c
0.93c

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 base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11