A boat travels 9 km upstream and 9 km back. The time for the round trip is 5 hours. The speed of the stream is 2km/hr. What is the speed of the boat in still water?

The price of a box set of any two video games is $75.85. Henry buys two such box sets and gets a discount. He pays $141 for the box sets. What is the discount d that Henry gets on each box set?

Find the product of - 5 + 2i and its congugate. The answer is a + bi where a = ? and b=?

If 50% of a number is 120, find 14% of the number

8/6.403 to the nearest tenth

Rename the fraction as a percent:1/2 =

Between what two integers does - 6.2 lie?

Javier had $305 in his bank account. His bank charges a fee of $7.50 each month that a balance is below $500. If he makes no other deposits or withdrawals, how much money is in Javier's account at the end of three months?

If line XZ is 2ft, line YZ=18in. what is the length of line XY

Alexandra spent her birthday on a video game that cost $24, a controller for $13, and a memory card for $16. there total tax was $3. what is a subtraction equation for finding how much she gave alexandraif she received $4 in change

EUR/USD = 1.11706 How much USD is 300 EUR?