In this equation, you have to treat the number in the bracket first on the basis of BODMAS
15 - [-3]- 4
Note that when two minuses come together the product is a plus sign.
15 +3 - 4
You have to add before you subract
18 - 4 =14
Therefore, 15- [-3] - 4 = 14.
        
             
        
        
        
Answer: i think its the 3rd one
Step-by-step explanation:
 
        
             
        
        
        
You would multiply 16*3 to get an estimate. 
16*3= 48
The bike would be about 48 units.
I'm assuming you mean a 16:1 scale.
16:1= 16/1 which =16 
Hope this helps!
        
                    
             
        
        
        
Answer:
a) 100 metres
b) 10 metres
Step-by-step explanation:
Given: the approximate height, h, in meters, travelled by golf balls hit with two different clubs over a horizontal distance of d meters is given by the functions: 
To find: distances when the ball is at the same height when either of the clubs  are used. Also, to find this height
Solution:
(a)

(b)
Put d = 100 in 

 
        
             
        
        
        
We are given 
Clare is paid $90 for 5 hours of work
Total money paid =$90
total hours of work =5 hours
so, firstly  we will find rate of work
rate of work = ( total money paid)/( total hours of work)
now, we can plug values
and we get 
The rate of work is 

 $/ hour
 $/ hour
now, we have to find time for amount paid is 25 cents
so, amount paid =25 cents
100 cents =1$
so, amount paid =$ 0.25
Since, the rate is constant 
so, we can take same rate here 
now, we can use formula 
rate of work = ( total money paid)/( total hours of work)
now, we can plug values

now, we can solve for T 
 hour
 hour 
since, T is in hours 
so, we can change into seconds
1 hour =3600seconds
so, we can plug 
 seconds
 seconds
 seconds......................Answer
 seconds......................Answer