In two or more complete sentences, explain how to use ordered pairs of points in f(x) = 2x + 5 and g\left(x\right)=\frac{x-5}{\:2} to determine if f(x) and g(x) are inverses of each other.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2