If the original quantity is 20 and the new quantity is 18 , what is the percent decrease?

If you guess an answer on two multiple choice questions with the options a, b, or c, what is the probability of you guessing the answer to both questions correctly?

Question 9. True or false? Provide a simple counter-example if it is false. (9. a) The sum of two rational numbers x, y EQ is always a rational number, x+y EQ. (9.

The pressure at sea level is 1 atmosphere and increases at a constant rate as depth increases. When Sydney dives to a depth of 23 meters, the pressure around her is 3.3 atmospheres.

Multiply and remove all perfect squares from inside the square roots. Assume x is positive. 2 squareroot 7x*3 squareroot 14x^2

What is the answer to this question 4^6*4^3?

Which is greater 0.6 or 0.06

Clarke borrows $16000 to buy a car he pays simple interest at an annual rate of 6% over a period of 3.5 years how much does he pay all together?

The length of a rectangle is 1 ft more than double the width, and the area of the rectangle is 45 ft2. find the dimensions of the rectangle.

Each minibus seats 14 people, and the school owns 5 minibuses. Use mental math to find how many students can ride in the school's minibuses at the same time. Show your work.

Find the x and y intercepts of 8x 4y=56