Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. irene's car had 6.8 gallons in the 15-gallon tank on the coldest day of the year. irene filled the tank with gas that cost $3.60 per gallon. how much did irene spend on gas?

What statement is true? 2x^2-9x+2=-1

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.