Answer:
4
Step-by-step explanation:
8164/78.5
(8164×2)/((78.5×2)
= 16328/157
= 104
Answer:
20
Step-by-step explanation:
the LCM of 2, 4, and 5?
2

I know my picture stinks, but it is possible. If you make it into a triangle shape, but move the table a bit closer to the throwing wheel (as shown) it works out great. If you ever get a problem like his again, just think outside the box for different solutions.
Answer:
r³ + 15r² - 10r - 4
Step-by-step explanation:
First, note you can remove the brackets, in this case they contribute nothing at all.
Then, group the like terms and add them, e.g., we have 3r³ and -2r², they add up to r³.
Finally, order them from greatest power of r to smallest power of r.
That's all!
The photo is upside down btw