7.5
Explanation:
11-3.5=
Take 3 away form 11 and then get 8 then subtract.5 and you are left with 7.5
Answer:
x = -4 and x = -14
Step-by-step explanation:
Our equation is (x + 9)² = 25
Applying the square root property we would need to take the square root of both sides: 
This give us x + 9 = ±5
Here we have two equations since taking the square root gives us a positive and negative value
Our first equation is x + 9 = 5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -4
Our second equation is x + 9 = -5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -14
Answer:
43.5=67.5
Step-by-step explanation:
19.5+24=43.5
43.5+7.5=51
=
19.5+24= 43.5
43.5+24=67.5
The surface area is about 62.43750, or approximately 62.4 square feet. 1.25 times 62.4, the total cost is $78 to clean the rug.