4(2x + 10)=0
8x + 40 = 0
8x = -40
x = -5
Answer: 3/2
Step-by-step explanation:

Answer:
It's option d.
Step-by-step explanation:
The line y = x + 2 has domain x < 2 (because of the clear circle.)
The lines y = x + 1 has domain x ≥ 2. ( because of the filled circle).
Answer:
1/2
Step-by-step explanation:
We first find the least common multiple, which is 6. Therefore, we can multiply 1/3 x 2/2 (since 2/2 is equal to one and won't change the final amount) and get 2/6. 2/6+1/6=3/6, or 1/2.
Answer:
Option D. 50 ft
Step-by-step explanation:
we know that
The area of the figure is equal to the area of three rectangles
so


Remember that the area is given

so

solve for x
