Nancy went on vacation and sent postcards to all of her family and friends. She needed 39 postcards, but the store only sold them in packs of 15. She bought 3 packs. How many postcards did she have left over?

Need an artist designed a badge for a school club. figure abcd on the coordinate grid below shows the shape of the badge: the badge is enlarged and plotted on the coordinate grid as figure jklm with point j located at (2, -2) and point m is located at (5, 4). which of these could be the coordinates for point l? a. (2, 4) b. (8, 4) c. (5, 1) d. (5, 7)

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.