Answer:
$22
Step-by-step explanation:
The computation of the amount spent is shown below:
Since in the question it is mentioned that if you bought 2 than you got one bottle free
And, each bottle cost is $5.50
Now if you want 6 bottles so you have to spend tour 4 bottles to avail the offer
= 4 × $5.50
= $22
I’m pretty sure that’s true.
When you write an equation in the slope-intercept form

the two coefficients m and b represent, respectively, the slope and the intercept.
So, in your case, m=1/4 and b= -7, which leads to the equation

5 * 198 = 990
198
* 5
-------
990
Answer:
a) £320
b) £720
c) 2 days
Step-by-step explanation:
The question is all about inputting values and finding a result or rearranging and finding a result.
a) d = 6. C = 50(6)+20 = 320
b) d = 2x7 (7 days a week) C = 50(2x7) + 20 = 720
c) C = 120 ... 120 = 50d+20
100 =50d d = 100/50 = 2