Answer:
£7.80
Step-by-step explanation:
Since you multiply 2 by 3 to get 6, we are going to multiply 2.6 by 3
2.6 x 3 = 7.8
Thus the cost of 6 litres of lemonade is £7.80
Its the table on the bottom left
For each increase of 1 of x y increases by 0.5 so its linear
A standard trick for finding the rational form of a repeated decimal:

Multiply by an appropriate power of 10 to move one "cycle" of the repeated pattern to the left side of the decimal point:

Now subtract

from this number and we lose the fractional part:

And from here you can solve for

.
Evaluate A² for A = -3.
(-3)² = (-3) * (-3) = 9
Your answer is 9.
If the question is, however, evaluate A2, which is 2A, for A = -3, then the answer is:
2A = 2(-3) = -6.