Answer:
32/3 or 10.6 repeating
Step-by-step explanation:
multiply by reciprocal
6*(16/9)
96/9
simplified to 32/3
The order of the 3 books does not matter so its the number of combinations of 3 from 45
b is the correct choice
Jnjjtyyyuuuuuuuuuuuuuuuuu
4x+5y=7
y=3x+9
1) 4x+5(3x+9)=7 2) y=3(-2)+9
y= -6 +9
4x+15x+45=7 y=3
19x+45=7
19x= -38
x= -2
x is -2 and y is 3
