What is the value of the underline digit 587

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a

There are 1872 steps in a building that has 104 floors. each floor has the same number of steps. a second building has the same number of floors but 2 fewer steps between each floor. how many steps are there between each floor of the second building?

When a number is decreased by 7%,the result is 74. what is the original number to the nearest tenth