Given
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f(x) = 3x2 + 4x – 30 find f (4)
Show your work on the sketch pad below.

Is it true or false i’m trying to pass this test so i can leave school

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.