Part (1):
8/z = 10/25 = 6/15
This can be simplified as:
8/z = 2/5
Use cross multiplication as follows:
8*5 = 2*z
40 = 2z
z = 40/2 = 20
Part (2):
12/36 = 14/42 = 8/t
This can be simplified into:
8/t = 1/3
Use cross multiplication as follows:
3*8 = t*1
t = 24
