Which is an acid? a. co is a gas at room temperature and has no odor. b. hcl has a sour taste and gives off protons in water. c. koh has a bitter taste and accepts hydrogen ions.

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Evaluate the expression. (9 + 5)(3 + 2)0

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?