Come for F R E E 100 points ;D

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi