A carpenter used 31 lb of nails for a job. After the job was over, the remaining nails weighed 11 lb. How many pounds
of nails did the carpenter have at the beginning of the job?

Thanks!!

Let r = 3. what is the value of r + 58?

Me n o w. i need t h i s. 10 points

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.