PLEASE HELP ME TYSM IF YOU DO!!!

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

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.