The function f(c)=9/5 c+32 determines the fahrenheit equivalent of degrees celsius. find the fahrenheit equivalent of 30 celsius pls my math finals is tmrw

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip