Can someone me answer this question? i find it really confusing, and i need ! tell me how you got your correct

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

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1