Answer:
C
Step-by-step explanation:
7x+59=8x+46
x=13
AZB=(8x+46)/2
AZB=75
r = 25+b
n = 3b
n+r+b=435
3b+25+b+b=435
5b+25=435
5b=210
b=42
r = 25+42 = 67
n = 3(42) = 126
60 = x
180-144 = 36
36+84 = 120
180-120 = 60
14: 2x-1 = 3
2x=4
x=2
15:
x = 1/2500000
16: (ln(4/3))/4
17: sqrt(5e^12)
18: x = 16, -4
where are the decimal numbers?