Show Sally How it is Done! What is the Correct Answer? Step 1 3a2+4a2−a2

Step 2 7a2−a2

Sally's Answer 8a2

whats the correct answer

Which two undefined geometric terms always describe figures with no beginning or end?

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected