A store purchased a table and marked it up 50% from the original cost of $221.60. A week later, the store placed the table on sale for 45% off. What was the discount price?

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Does the point (1, sqrt 7) lie on circle shown.