Lena tried to solve a system of linear equations algebraically and the process found the equation 5=9. lena thought something was wrong, so she graphed the equations and found that they were parallel lines. complete the explanation for what lena's graph and equation could mean.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2