2. Calculate:Tính:a) (28,7 + 34,5 ) x 2,4b) 28,7 + 34,5 x 2,4

So, 28.7 + 34.5 x 2.4 = 111.5

Then, add 28.7 to 82.8 to get the final result

First, multiply 34.5 by 2.4 to get 82.8

b) For calculation 28.7 + 34.5 x 2.4,

So, (28.7 + 34.5) x 2.4 = 151.68