What are the first six nonzero multiples of 7? ?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?