To solve for y, you need to isolate/get the variable "y" by itself in the inequality:
x + 8y < 16 Subtract x on both sides
x - x + 8y < 16 - x
8y < 16 - x Divide 8 on both sides to get "y" by itself


Hi there!
The expression is 4 + 3x.
Hope this helps!
Answer:
140°
Step-by-step explanation:
The value of supplement is 40 and X. We know that the sum of the sumplementary angles is 180. Therefore ,
=> x + 40° = 180°
=> x = 180° - 40°
=> x = 140°
<h3>
<u>Hence </u><u>the</u><u> </u><u>value </u><u>of </u><u>x </u><u>is </u><u>1</u><u>4</u><u>0</u><u>°</u><u> </u><u>.</u></h3>
a. i. Calculate the area of the complete semicircunference, and substract the area of both internal semicircunference.
Let A the area that we need to calculate, let B the area of the total semicircunference, and C the sum of the internal semicircunferences.

a. ii. The same idea. Let P the perimeter that we need to calculate, and let P' the perimeter of the total semicircunference, and Q the sum of the perimeters of the internal semicircunferences.

b. i 
b. ii 
5(x+4)=5x-3 perform indicated operations on left side
5x+20=5x-3 subtract 5x from both sides
20=-3, this is never true so there is no solution, answer C)