Adam's sunflower plant was 147.087 centimeters tall in April. During May, the plant grew 62.4 centimeters. How tall was Adam's sunflower plant at the end of May? It is adding subtracting decimals

The perimeter of a rectangle is 120 centimeters. the base is 3 times the height. what are the dimensions of the rectangle? a. h = 9cm, b = 18 cm c. h = 15 cm, b = 45 cm b. h = 19 cm, b = 57 cm d. h = 10 cm, b = 15 cm select the best answer from the choices provided a b c d