Which of these is an equation?

a
9x - 7

b
(b + 7) x 3

c
4x + 9 = 45

d
(⅔)x - 3 > c

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o