4. find the solution to each equation mentally.
a. 30+ a = 40
b. 500+ b = 200
c. -1+c= -2
d. d +3,567 = 0

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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.

Average acceleration: i have no idea how to do this.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?