What is the answer to 6 times x squared minus the sum of 7 and 28

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°