Anut mixture of peanuts and pecans at a small fair is $1.00 per pound of peanuts and $4.25 per pound of pecans. over the entire day, 115 pounds of the nut mixture was sold for $358.75. if p is the number peanuts and n is the number of pecans, then the system of equations that models this scenario is: p+n=115p+4.25n=358.75 determine the correct description and amount of pounds for peanuts and pecans that were sold.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Math it's appreciated. (picture provided)

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?