F(a)=-2a +5
s(a)= a- 2 - 2a
find f(a) +gla)

-3a+8

Step-by-step explanation:

f(a)=-2a +5

s(a)= a-2-2a=-a+2

We are asked to determine

f(a) +g(a)

= (-2a +5)+ (-a+2)

=-2a+5-a+2

=-2a-a+5+2

=-3a+8

4 adults and 12 babies

step-by-step explanation:

4 x 7 = 28

12 x 15 = 180

180 + 28 =208

4 x 3 = 12

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: