The answers are 5 x (80 x 7) and 80 fives plus 7 fives
Answer:
9.87
Step-by-step explanation:
usually in math you never have to write down what pi squared is, you just have it incorporated into your equations. But here is the best written answer.
Answer:

Step-by-step explanation:
You can start by dividing both sides by 2, getting
.
Answer:
104
Step-by-step explanation:
did the test yourself(sorry for no proof)