Answer:
Step-by-step explanation:
The scale factor describes the size of an enlargement or reduction. For example, a scale factor of means that the new shape is twice the size of the original. A scale factor of means that the new shape is three times the size of the original.
Let the Number your finding be x
28 = 8+4(x)
(28-8) / 4 = x
x = 5
Answer:

Step-by-step explanation:
<u><em>The correct question is</em></u>
A sauce recipe uses 4 cans of tomatoes in every 2 1/2 quarts.
How many cans of tomatoes are used in each quart of the sauce?
Let
x ----> the number of cans of tomatoes
we know that

using proportion

Convert to mixed number

To calculate this we simply need to devide 153 by 18.
153/18=8.5
which means that Sarah can buy 8 new CDs and will have
153 - 8*18=9 dollars spare.
Sarah has extra cash because with that spare money she can't buy whole new CD.
True, u can choose any two distinct points on a line to calculate the slope