Answer:
D. 4
Step-by-step explanation:
Answer:
1.04 inch
Step-by-step explanation:
Given: Old house has a basement stairways with 7.25 inch vertical riser and 7 inch horizontal treads.
Remember; horizontal treads is known as run in steps.
Now, calculating the slope of the stairways.
Formula: 
Rise= 7.25 inch
Run= 7 inch.
Subtituting the value in the formula
Slope= 
(∵ Round to two decimal)
∴ Slope of stairways is 1.04.
Answer:
-9
Step-by-step explanation:
This is just -3 * 3
=-9
Answer:
No Solution
Step-by-step explanation:
|-x| always = | x |
| x | = - 10
If x = 10, It does not equal to - 10
If x = -10, It becomes 10 because its an absolute value, So it does not equal to -10
So, there is No Solution
Answer:
The expression for the total cost is x = 19.99 + 0.99n .
Step-by-step explanation:
Let us assume that the total cost be x.
As given
Sophia pays $19.99 membership fee for an online music store.
If sophia purchases n songs for $0.99 each .
Than the expression becomes
Total cost = Membership fee + Cost of n songs
x = 19.99 + 0.99n
Here n represented the number of songs.
