Answer:
She has 21 baskets left for her to pack.
Step-by-step explanation:
21 sweets
Colm : Gaz
4 : 3
4 units = 28
1 unit = 28 ÷ 4 = 7
3 units = 7 x 3 = 21 sweets
Remembering the properties of numbers is important because you use them consistently in pre-calculus. The properties aren't often used by name in pre-calculus, but you're supposed to know when you need to utilize them.
