The first one I believe is five because it says ten times as many as ___________ is fifty so you take five times ten you get fifty.
This is the additive identity property or identity property of addition.
This property states that when you add 0 to a number, the result is the original number.
Answer:
The slope is 2/3
Step-by-step explanation:
The line crosses through the blue grid lines leaving gaps on each. Find two points which cross at an intersection such as (0,30) and (30,50). Find the slope by substituting these points into the slope formula:

Answer:
x=-5
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.