A city has 5 new houses for every 8 old houses. If there are 40 new houses in the city, how many old houses are there?

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?