If abc = def , which congruences are true by CPCTC ? Check all that apply?

Which of the following lines is parallel to x=4? a- 3y=9 b- y=4 c- x=2 d- x=y answer this as soon as possible xoxo lo ; )

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?