0+0=0 0+0=0+0
They are all addition, and they are all 0, and since 0 equals nothing, the sum is equivalent to 0!
Answer:
x + 27 = - 12
x = - 39
Step-by-step explanation:
Answer:
They will be picked up at 2
yards above sea level
Step-by-step explanation:
Let us consider sea level as reference and positions above sea level as positive and below sea level as negative.
With respect to this reference,
the position of top most point is +17
yards
and the position of lower most point is -13
yards
⇒ The position of midpoint is 
= +2 
∴ <u>They will be picked up at 2
yards above sea level</u>
Answer:
Design 1
Step-by-step explanation:
Design one would work better because the students get to see both materials (each on one foot) and if they do the same things each day with both feet, they can test how the material works with the activity...If that makes sense