Answer:
If x=9 then you have to multiply -4 *9. -4*9= -36. Good luck!
Step-by-step explanation:
The coordinates of vertex d is (-3, -4)
The angle right above 4x is equal to x
and 4x + x = 180
5x = 180
/5 /5
x = 36
She knits 18 squares on Monday.
Then she knits 7 more squares each day:
Tuesday: +7, Wednesday: +7, Thursday: +7 and Friday: +7
18 + 7 * 4 = 18 + 28 = 46
Answer: She has 46 squares on Friday.