Answer: Fact families are 3 numbers that make up a set of related math facts
Step-by-step explanation:
.An example of a fact family for multiplication and division is 2, 3, and 6: 2 X 3 = 6, 3 X 2 = 6, 6 2 = 3, and 6 3 = 2.
10x^4y^4+2x^6-15y^6-3x^2y^2
30 divided by 12 will give you the percentage 40% , or c