Combine like terms to create an equivalent expression.
\dfrac78m+\dfrac{9}{10}-2m-\dfrac35
8
7

m+
10
9

−2m−
5
3

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.