I need help please. This is passage and question: As used in the passage the words “arid velt” means:

A. An opening at the bottom of the river
B. A swampy basin
C. A densely wooded bank
D. A dry open piece of land

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?

Ahands-free device may only be used if it can be activated or deactivated with a

During a load test, a battery's voltage drops below a specified value. what action should the technician take?