Answer:
20 + 4s
Step-by-step explanation:
(5 + s)4 = 4(5 + s)
=> 4(5 + s)
=> 20 + 4s
This is the correct distribution.
Hoped this helped.

(Sorry fo the graph) The idea is the following, draw the straigh line, and put the numbers -3, -2 ,-1, 0, 1, etc. In the position -3 you need to start to draw the interval solution, with an open circle.

It is like 
Answer:
12 inches of red ribbon + 7 inches
therefore the length of a blue ribbon is = 19 inches
Answer:
24.9
Step-by-step explanation:
12-3b b=4.3
12-3(4.3)
12- (-12.9)
12 + 12.9
24.9