Giselle works as a carpenter and as a blacksmith. she earns $20 per hour as a carpenter and $ 25 per hour as a blacksmith. last week giselle worked both jobs for a total of 30 hours and earned a total of $690. how long did giselle work as a carpenter last week, and how long did she work as a blacksmith

41/17 as a decimal rounded to the nearest hundredth

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Angle sum theorem. find z,x,y and w