7x+2(5x)=-17
7x+10x=-17
17x=-17
x=-1
y=5x=5(-1)=-5
It would be -8/10 because
16/20 when simplified is 8/10
4/5 when doubled is 8/10
-8/-10 is still 0.8 which is also 8/10 (-8 divided by -10 = 0.8)
I believe it’s b
It is the one in between and closest to the amount that you need
I don't know if this is what you mean by your question but can be broken down by place value into 4, 0.20 and 0.03. 2.75 can be broken down into 2, 0.70, and 0.05. Then subtract the same place values from each and you will get 1.48
