Ineed with this problem. can someone explain it to me ?

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

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?