What does the strategy neighbors mean in Math?

When two planes equation given and one parametric equation is given how can you find the plane equation? What is roman numeral symbol for 25 billion? Find the largest number which can exactly divide 153 and 783 and 1107? What is 220 times 22? Is 31 and 41 an even numbers? What goes into 60 and 75? How many m2 is 15 ft by 13.5 ft? What are two consecutive prime numbers? How mant times can 14 go into 154? How many km in 2500 meters? Is any number ending in 2 is a composite? What is 16 divided by 0.03? Is there a relationship between the sign positive or negative of the slope of a line and the angle the line makes with the x-axis? How do you learn trigonometry in an easy way? There are four in a deck of cards? The sum of two consecutive odd integers is 100? How do you write 37.05 in word form? What is hindu arabic of MCM? How old would you be if you was born in1985? Who first travelled round the world proving it was a sphere?