How many sides does a regular polygon have if its exterior angles
a. 45
b. 30

The function show two sisters' savings account and the rate at which they plan to deposit money

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

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?