If 21 - (a-b) = 2 (b+9), and a=8, what is the value of b?

Which of these numbers has the least value? a. 7.2 x 10 b. 8.1 x 10 c. 9,100,000 d. 9.5 x 10

Jasmine wants to use her savings of $1,128 to buy video games and music CDs. The total price of the music CDs she bought was $72. The video games cost $43 each.

The weather forecast shows a 60% chance of rain. If it does not rain then there is an 80% chance of going to the beach. If it does rain then there is a 5% chance of going to the beach. What is the probability of going to the beach?

In the game of roulette, a player can place a $55 bet on the number 3434 and have a startfraction 1 over 38 endfraction 1 38 probability of winning.

What does the base and exponent mean in math?

A square garden plot measures 44 yards on each side. What is the length of the diagonal of this plot?

What are the roots of the equation X squared plus 6X - 9 equals zero?

Eli is making guacamole. He uses 2 tablespoons of cilantro for every 3 avocados. At this rate, how many tablespoons of cilantro will he need for 9 avocados?

How do you find the mean, median and mode?

1 3/4*2 1/2 in simplest form