Melanie has decided to run for president of her science club she would like to purchase colorful rubber bracelets that say Melanie for president she plans to pass out these colorful bracelets at the next meeting there are twenty bracelets in each package each bracelet costs 3.50 how much will Melanie have to pay if she purchases two packages of colorful by

If there are twenty bracelets in each package and Melanie purchases two packages, she will have a total of 20 x 2 = <<20*2=40>>40 bracelets.

If each bracelet costs $3.50, Melanie will have to pay a total of 40 x $3.50 = $<<40*3.5=140>>140. Answer: \boxed{140}.