1. Using the given angle, answer each: -21pi/8 (show your work) a. Draw the angle in standard position and determine the quadrant in which the terminal side lies.
b. Find two angles coterminal with the angle. Be sure to include one positive and one negative angle, in radian measure.
c. Determine the reference angle, in radian measure.
d. Convert the angle to degree measure. Use both decimal degree and DMS (degrees, minutes and seconds)

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Will mark brainliest! ( explain the answer too, it can be one sentence)

Gia opened two savings accounts at two different banks. one account earns an annual 3.4% simple interest, and the other earns half as much. if she deposited $500 in each account, how much total interest will she have earned in 5 years? a. $34.00 b. $25.50 c. $51.00 d. $510.00