Distance to checkpoint A from starting line = 20 yards.
Then from A to B distance = 12 yards.
Let us take starting point C.
So, it would make a right triangle.
We have AB = 12, AC = 20, we need to find BC, that is Hypotenuse of the right triangle.
According to Pythagoras theorem:




BC = 23.32.
<h3>Therefore,  23.32 yards is the distance from Checkpoint B to the starting line.</h3>
 
        
                    
             
        
        
        
Answer:
a is the write ansere
Step-by-step explanation:
please mar me brainliest 
 
        
                    
             
        
        
        
The unit price for the 7.48 is $2 kg per bag and the unit price for the 7.94 is $2 per kg bag, there is no difference in unit rates of both the bag.
<h3>What is unit rate?</h3>
A unit rate means a rate for one of something.
Given that, Susan paid $15.84 for a 7.48 kg bag of dog food. A few weeks later, she paid $16.58 for a 7.94 kg bag at a different store.
15.48/7.48 = $2/kg
16.58/7.94 = $2/kg
Hence, there is no difference in between both the bags, hence either of them are better.
For more references on unit rates, click;
brainly.com/question/11258929
#SPJ1
 
        
             
        
        
        
10:14 or 10 to 14 
The total number of roses is 14 and there are 10 red roses. For every 14 roses there are 10 red roses.
        
                    
             
        
        
        
Let's call your speed "a"
her walking speed is then "2a"
and her friend's scooter speed is 10 a
let's also call the distance you need to walk "d"
so the time (t)you need is: 
d/t=a
t=d/a
and her time is: 
 t=

(half a distance with the speed of 2a and half a distance (d/2) with the distance of 10 a
now we count (we know that her time is 30 minutes)
30= 

 //multiply by 20a
600a= 

600a=6d/divide by 6
100a=d
Now, in order to calculate your time we need to calculate:
t=d/a
but we know how much is d now!
t=

=100
which means that you need 100 minutes, or 1 h 40 minutes!!!