15x2+10x-9x+7
8x3+20x2+3x+12
11x4+4x2-6x2-16
Hope this helps !!
Answer:
=
3
7
.
7
2
Step-by-step explanation:
Add
2
4
.
4
5
24.45
24.45
to both sides of the equation
1
3
.
2
7
=
−
2
4
.
4
5
1
3
.
2
7
+
2
4
.
4
5
=
−
2
4
.
4
5
+
2
4
.
4
5
6.804 kilograms = 15 Ib. I hope I'm right. I looked it up on google
The answer is 45/4 or 11 1/4