How many terms are in the expression 5+m

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Which is an equation for the nth terms of the sequence 12,15,18,21

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