A boat is moving downstream at a speed of 20m/sec. The wind is pushing against you at a speed of 10m/sec. What is your total velocity?

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle