The sign only changes when divided or multiplied by a negative number.
Here you go I hope this helps.
Answer:
The 12 children selected in Mrs. Smith's kindergarten class.
Step-by-step explanation:
A sample is a representative part of a population on which a research is carried out.
The study In Mrs Smith's class was to find out the number of hours the children in Kindergarten Sleep in a day. Out of the total number of students, 12 were selected for observation. The 12 childen selected is therefore a sample of the class.
He cut the lasagna into 15 pieces. If he cut 3 pizzas and he cut each one 5 times, then he would come out with 15 total slices (3x5)
