Answer:
Step-by-step explanation:
8. 







9. 


10. 


11. 6.9 < x - 2.3
+ 2.3 + 2.3
9.2 < x = x > 9.2
Hope this helps!
Answer:

Step-by-step explanation:
This is basic trigonometry.




And finally perimeter (p):

Answer:
y= -28
Step-by-step explanation:
35+4=3y+123
39=3y+123
-3y+39=123
-3y=123-39
-3y=84
y= -28
Answer:
1/5
Step-by-step explanation:
5/25
1/5
Answer:
The apples may have costed 0.50 cents each, and she may have bought 10, which would result in her paying 10 dollars, and receiving 5 dollars in change.
Step-by-step explanation:
Multiply 10 (the amount she gave to the cashier) by 0.50%, it equals 5, so that's how much she paid, and since she gave a 10 dollar bill, she should get 5 dollars in change.
T^T