A painter charges $15.91 per hour, plus an additional amount for the supplies. If he made $175.81 on a job where he worked 6 hours, how much did the supplies cost?

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

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.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry