Final answer:
To find the dimensions of Roberta's canvas, we need to reduce the length and width of John's canvas by 25%. The dimensions of Roberta's canvas are 6 feet by 4.5 feet.
Step-by-step explanation:
To find the dimensions of Roberta's canvas, we first need to determine the dimensions of John's canvas. John's canvas has a length of 8 feet and a width of 6 feet.
Roberta's canvas is 25% smaller than John's. To find the dimensions of Roberta's canvas, we need to reduce both the length and width of John's canvas by 25%.
Reducing the length of John's canvas by 25%, we get 8 - (8 * 0.25) = 6 feet. Reducing the width of John's canvas by 25%, we get 6 - (6 * 0.25) = 4.5 feet.