If the digital on the dashboard shows a speed of 75 kilometers per hour what is the speed i’m miles per hour

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?