Answer:
A=50
Step-by-step explanation:
assuming you mean 100-A+20-70=0
you need to solve for A, which means add all your numbers together and isolate A.
-A+50=0
A=50
Answer:
40 yd
Step-by-step explanation:
Rectangular prism formula:
A = lwh
A = (2)(4)(5)
A = 40
Answer:
that is an addition sign the correct answer is B
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
Graph all points. They do not make a line.