Whats 0.11 + 0.28 = ??

And show the steps to it.

Use the distributive law to multiply. 3(4x + 5y + 6)

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?