Explain how to use the order of operations, mistakes that someone might make and how to avoid those mistakes.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Which of the following circles have their centers in the third quadrant? check all that apply.