Find the horizontal or oblique asymptote of f(x)= 2x2 +5x + 6 over x+3

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?