Kevin has $4.85 in nickels and dimes. if he has fewer dimes than nickels how many coins (nickels and dimes) does he have altogether

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

Can someone me out here number 4 plz

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.