Can somebody with these two? i'll mark brainliest for your answer!

1: how do you find 3 4/5x - 2 1/2 for x = -10 step by step?

2: simplify the expression step by step, listing the property of operations used.
-5/6 x (-5/8) x 6/5 =

you so much!

1.

2.

Step-by-step explanation:

1. We are given an expression that is . We have to find its value for x = - 10

So,  

=

= {Putting the value of x}

=

=

= (Answer)

2.

=

= (Answer){Since }

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half