Solve the equations

8y-9x=-3

5y-8x=10

The figure shows a right circular cone on top of a half-sphere with the same radius. If the cone has a radius of 2 cm and height of 6 cm, what is the approximate volume of this solid?

In 1192 the population in a town was 8000 people. In 1997 the population was 14000. What was the percent increase in the population?

Distance between New York and San Francisco is 2,563.79 miles. A train travels at an average speed of 90 miles per hour. What equation shows the relationship between distance traveled (d), speed (s), and time taken (t) ?

A dictionary cost $24. The total cost of the dictionary and 4 identical diaries is the same as 7 diaries. How much does 1 diary cost?

The table below gives the typical number of days of rainfall in Spring and Fall in Death Valley, California.

643=4x160+n write what n represents in the division problem

Which is equivalent to 4x/x-7 - x+7/x

What does - 8/3 + 40/9 =

What is he answer to 3/4+1/16

If it takes a total of 6 hours to fill up an inground backyard pool using a standard hose. A function can represent this situation to represent the amount of water in the pool until it's full as a function of the time the hose is running.