Hi! Could you explain this question? I’m not sure what these symbols mean, nor how to solve.

Find the values of y: 3y^3(y^2+ 2/3y)=0

Divide. write in the simplest form. 4 1/6 divided by 10

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =