Which of the following are algebraic expressions are linear expressions? select two answers.

a. -9y

b. -7x^2 + 4x

c. -1/2x^2

d. 8xy

e. -4/5x + 3/8

What is the simplified form of x + 8/3x + 7 + x +7/x+4

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Which graph represents the solution set for the given system of inequalities? x+2y< 3 x+y> 4 3x-2y> 4