Respuesta :

Answer:

12) z = 64

15) q = 75

Step-by-step explanation:

12) 40/65 = z/10⁴

Cross Multiply

65 × z = 40 × 104

65z = 4160

z = 4160 / 65

z = 64

15)32.5/25 = 97.5/q

Cross Multiply

25 × 97.5 = 32.5× q

q = 25 × 97.5/32.5

q = 2437.5 /32.5

q = 75