Show that 3 - (x-1) / ( (x^2 -1) / (3x +2)) can be written as a/x+b

where a and b are integers.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120

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