One pound of nails cost $8.57. carlos needs 2 3/4 pounds of nails. what will it cost him to the nearest cent?

Which of the following expressions is equal to 2x^2+8

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?