To solve this question, simply find the amounts of money the items will cost.
4 x 1.19 =4.76
3 x 1.89 = 5.67
1 x 4.95 = 4.95.
20.00 - 4.76 - 5.67 - 4.95 = 4.62.
1 dollar = 100 cents
4 dollars = 400 cents
4.62 = 462 cents
462 cents/79 cents = 5.84 = 6.
She can buy about 6 pens.