Va rog repedeeeeeeee, plsssssssssssss

Răspuns:
a) 2,4(52,3+47,7) =2,4*100=240
b) 17,05(17,05-7,05)=17,05*10=170,5
c)2,7+1,7²=2,7+1,7+1,7= 6,1
d)1,4(1,4-2,744)=1,4×(-1,344)= -1,8816