Class 7887 has 2:7 math classes daily. How many math classes do they have after 21 days? Please answer properly, You will get 1000 points for answering it, I do not want to see any links otherwise you will be banned!

The image of the point (-6, -2)under a translation is (−7,0). find the coordinates of the image of the point (7,0) under the same translation.

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?