Solve the system of equations using substitution.
y= 3/4x-7
4x- 6y=50

What is the missing constant term in the perfect square that starts with x^2 -20x

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Give me the equations of two lines that have the same slope but are not parallel.