Explain two dimensional co-ordinate systems

Suppose an economy has only two sectors: Goods and Services. Each year, Goods sells 80 % of its outputs to Services and keeps the rest, while Services Goods Services sells 73% of its output to Goods and retains the rest.

If a marble is randomly chosen from a bag that con- tains exactly 8 red marbles, 6 blue marbles, and 6 white marbles, what is the probability that the marble will NOT be white?

Caitlin bought 6 cookies for a total of $10. At this rate, what is the cost of 9 cookies?

The sum of 15 and x plus 7

The function below can be used to calculate the cost of surfing the internet, f (m), which is based on a $10 initial charge and a fee of $.15 per minute, m, till you sign off. f (m) = 10+0.

A sunflower was 1.8 meters high one week ago. In 7 days it grew 12 centimeters. Find the current height of the sunflower

If the diameter of a circle is 15 then the radio is is ...

Hector replaced 1/3 of the buttons on his coat. If he replaced a total of 3 buttons. How many buttons are on his coat in all?

Scott answered 18 out of the 20 questions on his homework assignment correctly. What percent of the question did he miss?

Each of the triangular faces has an area of 32 m2. What is the surface area of the square pyramid?