The equation y = 11x + 400 represents the cost of a field trip as a function of the number of students who attend. What is the initial value of the function? What is the rate of change? What do these values tell you about the field trip?

someone please respond

For a read-a-thon, jay and odhràn each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhràn's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?

Can someone me out here number 4 plz

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.