How many positive integers are there whose digits strictly increase from left to right?

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

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?