(ANSWER QUICK!!!) Which is the solution to (8.5 x 103)(2 x 105) expressed in scientific notation?
A. 1.05 x 10^9
C. 1.7 x 10^7
B. 1.7 x 10^9
D. 1.7 x 10^16

1.8*10^5

Step-by-step explanation:

Let x be the number of apples 
Let y be the number of oranges 

x+y≤20 
0.24x+0.8y≤12

x≤20-y 

0.24(20-y)+0.8y≤12
4.8-0.24y+0.8y≤12
0.56y≤7.2
y=12.9 (you can choose 12 here, since you can't have a fraction of an orange sold) 

x= 7.14 (again, rounding this off to 7) 

Therefore, Darcy got 12 oranges and 7 apples. 

Hope I helped :)