Here is part of the menu price list at a takeaway.
£1.20
Fish
£2.70
Chips
Peas
£1.60
Rice
45p| Sausage
90p Bread roll
25p| Samosa
30p
75p
Pickled onion
a) Keira buys a sausage, one portion of chips and a samosa.
How much does she pay?
£
b) Taha buys one fish, a portion of peas and a pickled onion.
lowan buys a portion of rice, a sausage and a bread roll.
How much more (in £) does Taha pay than lowan?
Optional working
£

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

whaere is the picture

step-by-step explanation: