Answer: Tammy's sample may not be vaild because she surveyed the students only from her class and it is likely that other classes might not like the subject maths. She might get the accurate results by surveying a larger number of people in the school instead of just her class.
Answer:
30 is the least common factor or lcm
Step-by-step explanation:
when adding fractions you always have to find the lcm
Answer:
=7.5
Step-by-step explanation:
Answer:
Triangle with Blue shape inside. All of the other shapes are divided up in to triangles. The triangle on bottom (with blue shape inside) is divided up into polygons.
Step-by-step explanation:
