Answer:
n= 578 + 1160 x2
Step-by-step explanation:
I think--
Answer: <em><u>4.</u></em> This is because 1 and 1/5 = 1.2 and 3/10 = 0.3 and 1.2 divided by 0.3 = 4. That's because 1.2 can be split into 4 equal groups and each group has 0.3.
Answer:

Step-by-step explanation:
First, multiply the two denominators together to get the shared denominator, which will allow you to actually subtract the two numbers. 4 × 8 = 32, so the shared denominator will be 32.
Then, cross-multiply. 11 × 8 = 88, so
becomes
. 3 × 4 = 12, so
becomes
.
Now, you can subtract. 
Finally, simplify.
. The final difference is
.
78
16 times 72 = 1152/(192/13) = 78