Answer:
72 / 123 * 100 = 58.53658537 per cent
Step-by-step explanation:
The answer is: 50.5
Solution:
3.03 x 100 = 303
303 ÷ 6 = 50.5
Step-by-step explanation:
log <base a> b = x
means
a^x = b
So
3^2 = x^2+7x+21
x^2 + 7x + 21 - 9 = 0
x^2 + 7x + 12 = 0
(x+3)(x+4)
x = -3 or -4
2.5 b = 27.5
b = 27.5 / 2.5
b = 11
