Answer:
B) 5065
Step-by-step explanation:
100.5 times 5 = 502.5
502.5 times 100
+ 8 times 5 (commission)
x² - 144 = x² - 12²
= (x +12)(x - 12)
a² - b² = (a + b)(a-b)
90°
hope this helps :)