If tan 0 = 9- sec 0 with O in quadrant I, what is sin 0+ cos 0?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?