First and second one is correct.Here are my long answers (i can remember correctly):

(proof)

(proof)

$1199

22.5km/hr

18km

6km/hr

26m

3:10

17 degrees

(in diagram)

t = 26

4

t = 4s -2

41

can anyone confirm???

9180 + 34000 = 43180

43180 / 36 = $1199

I thought it was s = 4t since one square = 4 triangles, tried to use logic... failed.

Also.. that means i forgot to minus 2, meaning i got the last one wrong too. I got 43. Grr