Which selection shows the correct order of points from least to greatest on the number line?

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?