Answer:
it will cost him $34.06 to ship all 20 pounds of merchandise
23
Step-by-step explanation:
Here's the answer to the question
1-true 2-B-5,65
b=11 a=-2
4=x and 7=y and 4+7=11
a(4)+3(7)=13
4a+21=13
-21 -21
4a=-8
÷4 ÷4
a=-2