HELP ME ;-; PLEASE WORTH 20 POINTS which of the following triangle is acute obtuse or right?
A. Acute
B. Obtuse
C. Right

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. which expression could be used if he wanted to find out how much money he had left after 8 weeks?