The length of a rectangle is five inches less tan twice it’s wisth. If the rectangle has a perimeter of 80 inches, find the length and width

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

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 in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.