How do you subtract a whole number 5 from a fraction 7/8

Draw a scaled copy of the circle using a scale factor of 2

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Suppose you are analyzing the relationship between time and distance given in a table,and there are 4 values for each quantity.you divide distance 2 minus distance 1 by time 2 minus time 1.you then divide distance 4 minus distance 3 by time 4 minus time 3 and get a different answer.what can you say about the relationship?