What number should be placed in the box to help complete the division calculation?

Let w=23 . what is the value of w + 45 ?

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?