It takes a boat 4 h to travel 75 km downstream. let x represent the boat’s speed in still water, and let y represent the water’s current in kilometers per hour.
the water is moving at 3.5 kmph. what is the speed of the boat?
kmph

What is the value of x when x + 7 = 21?

[15 points]find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3) ÷ (x^2 + 2x - 8) (x^2 + 6x + 8)

A. use the formula for continuous compounding with the original example: $1000 invested at 2% for 1 year. record the amount to 5 decimal places. use a calculator. b. compare it to the result using the original compound interest formula with n = 365 calculated to 5 decimal places. which has a larger value? explain.