Ivan's gas tank is 1/3full. after he buys 13 gallons of gas, it is 5/6 how many gallon can ivan's tank hold ?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

If the value of cos330°is√3/2 then find cos 165°.