Which of the following shows the extraneous solution to the logarithmic equation log7(3x^3+x)-log7(x)=2

Which number line correctly shows 0.8 + 0.3?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

What is the value of x enter your answer in the box (3x+50