Rational expressions

(for what value of x is the rational expression below undefined) ?

3x-12/9-x ... ?

What is 3.24 x 10^-4 divided by 8.1 x 10^-7 in scientific form?

3x2 - 6 = 10 - X2 {-1} {+2) {+4)

What is the solutions of the inequality? 12x - 3x + 11 > 4x - (17 - 9x)

Rounding 2.289 to the nearest tenth

An angle measures 55.8° less than the measure of a complementary angle. What is the measure of each angle?

If a Roadrunner ran 80 miles and 4 hours, how long will it take the Roadrunner to run 60 miles? Explain or show how you determined this.

How tall is now that is 10 meters in length and 5 meters in width

Priya looks at the inequalities 12-X>5 and says " I subtract a number from 12 and wants a result that is bigger than 5. That means that the solutions should be values of x that are smaller than something.

If f (x) = 2x2 + 2, find f (5).

Dave received 120$ for his birthday from his parents and his friends. He went on a shopping spree and spent 2/5 of his money on a t-shirt and 1/6 on mountain bike magazines. How much money does he have left.