9514 1404 393
Answer:
£135.98
Step-by-step explanation:

It cost £135.98 for petrol in April.
Answer:
4/4 as a decimal is 1.00 because 4/4 is one whole
Step-by-step explanation:
The

symbol means intersection, so everything that is in both sets, and the

symbol means union, so the two sets combined.


So the answer is A.
The trick is to write appropriate equations and then solve the system of equations you've created.
"sum of two numbers is -5:" x + y = -5
"difference is -1:" x-y = -1
Add these two equations together. This will cause y to drop out, and you will be left with an equation in x alone:
2x = - 6, so x = -3. Subst. -3 for x in either equation, above, and find the corresponding y value.
Then write your solution as (-3, y ) (write in your value for y).