(a(i))[2]
Find $A$ for $r=6.2$ cm and $l=10.8$ cm.
(a(ii))[2]
Rearrange the formula so that $l$ is the subject.
(b(i))[3]
Calculate Irina’s mean speed for the whole trip.
(b(ii))[5]
Find the value of $x$. Show your full working.
(c(i))[3]
Calculate the car’s original price.
(c(ii))[3]
Find an expression for the original price of this model car, in terms of $x$ and $y$, and give it as a single fraction.