Answer:

Step-by-step explanation:
0.3(n-5)=0.4-0.2
0.3(n-5) = 0.2
Dividing 0.3 both side




#1
Divide into two rectangles


#2

#3

Lets first convert everything to inches.
6 feet= 12*6 = 72 + 10 = 82 inches
8 feet= 12*8 = 96+9 = 105 inches
Now add!
82+105 = 187
Now convert them back to feet.
187/12 = 15 feet
12*15 = 180
187 - 180 = 7 inches
15 feet. 7 inches.
Final answer: B. 15 ft. 7 in.
In order to have an infinite number of solutions, it should be that the two equations are identical. Therefore, I believe the correct answer is option c. The value of b should be 6. Hope this answers the question.
Answer:
uh the 2nd one
Step-by-step explanation:
cause im smart