Answer:
320 square feet per hour
Step-by-step explanation:
800/2.5=320
<em>320 ft²</em>
<em>Hi there !</em>
<em>2 1/2 hours ........ 2.5 hours</em>
<em />
<em>2.5 h .......... 800 ft²</em>
<em>1 h ......................x ft²</em>
<em>x = 1×800/2.5</em>
<em>= 800/2.5</em>
<em>= 320 ft²</em>
<em>Good luck !</em>
B. 2x - 3