Answer is 11w-6
Add all the like terms. So all with the w’s which is how I got 11 and then 6 stays the same hence the -6
The second one would be the answer. You want to plug in for this question. You can divide over the five leaving you with (x-2)^2 =25. Since you are squaring this answer, you want to get either 5 or negative five. Both -3 and 7 will do that.
The answer is 45. there are 5 sides. each one is 9cm. 9*5= 45.
hope this helps.
Number 16- 216
number 17- 180
number 18- 252
