Five times the sum of a number and 27 is greater than or equal to six times the sum of that number and 26. what is the solution set of this problem?

The $x$-intercepts of the parabola $y = x^2 + bx + c$ are $(-3,0)$ and $(5,0).$ find the equation of the parabola, and submit your answer in $y = ax^2 + bx + c$ form.

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?