6.27 × 107 + 5.81 × 109 = × 10^---
HELP

What is the value of x in the diagram below?

Alogical argument that is presented in graphical form using boxes and arrows is called?

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.