Use quadratic regression to find the equation of the parabola going through these 3 points, (2,-33), (4,5), (5,39) Y= ? x^2 + ? x + ? I just got the answer, it's y= 5x^2 + -11x + -31
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Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?