I have to identify the like terms, then simply each expression 1.
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0

Step-by-step explanation:

it's easy

(a- 2a) – (3a – 4a²)

Combine a and -2a2 to get -a?.

a? - (32 – 4a?)

Combine 3a2 and -4a2 to get -a?.

-a?-(-a)

The opposite of -a2 is a?.

ta²

Combine - and a to get 0.

your answer is nothing i mean 0

Hope it helps you if yes then make me brainist.

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: