A boat travels 8 km upstream and 8 km back. The time for the round trip is 2 hrs. The speed of the stream is 4 km/hr. What is the speed of the boat in still water?

The graph of a quadratic function touches, but does not cross, the x-axis at x = 4. Which function represents this situation?

An appliance store reduced the price of a refrigerator by 20% and then raised the prices by 10% from the lower price. What was the original price of the refrigerator, if the price was $70.49?

Huilan's age is two times Thomas's age. The sum of their ages is 87. What is Thomas's age?

What is that solution to - 4|2x+6|=24?

a pool company has learned that, by pricing a newly released noodle aat $2, sales will reach 20,000 noodles per day during the summer. raising the price $6 will cause the sale to fall to 16,000 noodles per day.

Solve: 3x-15/2=4x ...

There are 691 students at Palmer Elementary School and 1,293 students at Palmer Middle School. About how many students are there in all at both school?

Which of the following algebraic expressions can be used to express the statement "one less than x squared?" 1 - x2 x2 - 1 1 - 2x 2x - 1

Is 7x - 10y = 3 a good model for a line that passes through (8,5) and (-12,-9)

What is equivalent to (1/4) to the - 3 power