Work out 50 as a presentage of 10

After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left