Solve the equation using the properties of equality.
x/4 + 3 = 15

Triangle knm is what is true about the sides of knm

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?