Answer:
The change was 18 ° F
Step-by-step explanation:
We know that:
At noon, the temperature in Tempest, California was 78°F
At midnight the temperature is:  60°F.
To find the temperature drop, subtract the temperature of  noon with the temperature at midnight. 

<h3>The change was 18 ° F</h3>
 
        
             
        
        
        
Answer:
y=(-5/3)x+29
Step-by-step explanation:
we will use the base formula y=mx+b
In order to be perpendicular, the slope must be the flipped fraction and have the opposite sign, so our m is (-5/3)
y=(-5/3)x+b
You can plug in the (9,14) point in order to find the b
14=(-5/3)(9)+b
14=(-45/3)+b
14=(-15)+b
14+15=b
29=b
and so altogether our equation is y=(-5/3)x+29
 
        
             
        
        
        
15flowers/3seedpackets
5 flowers/seed packet 
*4
————————————
20 follows equals 4 seed packets
your answer is ——-^^^^^^^^^^^^^^^