Step-by-step explanation:
20 x 399 x 5
= (20×5) × 399
= 100×399
= 39,900
Answer:
Last option: 
Step-by-step explanation:
The number line can help us to make additions and subtractions.
To add a positive number we need to move the point to the right and to add a negative number we need to move the point to the left.
You can observe in the figure that the point on the number line is moved from 3 to -4, then it is moved 7 places to the left. Therefore, you can express it in the following form:

This is:

Then the number line represents this number sentence:

What are you looking for? Please ensure that you have copied down the complete original question.
If, for example, the usual price of the cycle is $4,100, and we want to know how much one could save by buying the cycle at $3,600, we must subtract $3,600 from $4,100:
$4,100
- 3,600
-----------
$500
Answer:
2
a = - ------
15
Step-by-step explanation:
15 a = -2 (divide 15 on each side)
15a 2
----- = - ------
15 15
2
a = - ------
15
b is the answer...
The graph will be continuous because there can be any number of people signing up each day since we are only given the average.