The socks cost $40 before GST is added.
In the country Hamish lives in the GST
rate is 15%.

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !

triangle eg 7.5 × cos "a" or 7.5 × sin "b" or 6 tan"a"