Find the value of c that completes the square x^2-34x+c

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.