Sorry I can't solve it.
Firstly, the equation is wrong. It is supposed to be <span>81 ≠ </span><span>30.25
Second of all, this is the best I got </span>81= <span><span>−<span>76 <span>(<span>cos<span>(r) </span></span></span></span></span>+ <span>106.25</span></span>
Answer:

Step-by-step explanation:

Since there aren't any like terms, the answer would be:

Hope this helps!
I hope this helps, pls tell me if my way of answering is wrong
Answer:
2x-3y=4
x-2y=4
SOLUTION:
= ( 7 / 8 )m + 9 / 10 - 2m - 3 / 5
= - ( 9 / 8 )m + 3 / 10
Answer:
x>6
Step-by-step explanation:
3x+12-5x+5<5
-2x+17<5
-2x<-12
x>6