42. A hiker climbs for a half mile úp a slope whose inclination is 17º. How many feet of altitude, to the nearest foot, does the
hiker gain?

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28