If the perimeter of the triangle below is 28/3 what is the length of the side labeled 'x'

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?