Dimitrius returned. 5 library books last week, returned 3 books this week and then checked out 8 more books he now has 12 library books how many books did he have before last week

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?