Hi if you can answer this i'll mark u brainllest and give you MORE points What are three equivalent decimals for the number -4.2323?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Answer for 10 points show work you guys in advanced < 3

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?