Arectangle an an area of 30 square meters anda has dimensionsperimeter of 34 meters. what are the of the rectangle

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Could answer every question with steps

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