Answer:
she need to order 5 more packages
Explanation:
she has to print 250 invitations
and she has 5 packs of 25 sheets each pack
To know how many papers are we have to multiply the number of packages by the number of sheets that each package has
5 * 25 = 125
To know how many papers they need to buy, we have to subtract 125 from the amount of invitations she has to print
250 - 125 = 125
so she is missing 125 sheets of paper
To know how many packages are we have to divide this number by 25 which are the sheets that each package brings
125 / 25 = 5
she need to order 5 more packages