Answer:
2x=6
2x+1=7
2x-1=5
i beleive 9 times
Step-by-step explanation:
50÷5.50=9.09
4
16
0.10x + 0.13y = 10780
x + y = 100000
x = 74000 --------------10%
y = 26000 --------------13% (more risky)
