Twice the difference of a number and four is no more than the sum of
the number and five.

What is the binomial expansion of (2x-3)^5

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

What does independent variable and dependent variable mean in math?