Answer:
D. 24 ft
Step-by-step explanation:
The slope of 1/3 means the rise is 1/3 the run for each half of the span. The rise is shown as 4 ft, so the half-span is 3·4 ft = 12 ft.
The span of the roof is 24 ft.
The value of the expression would decrease because if you add more to the smallest number in the subtraction problem the value or the answer decreases
The area equals length time width so 7.5 times 5.3 = 39.75.
Question 8 should be y=-5/2x-1. And question 9 should be y=1/2x-7.