If g(x) = x^2-2x, find g(4n)

a. 8n
b. 8n^2
c. 16n^2 - 8n
d. 248n

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

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest