Can someone me on problems 9, 10 and 11 !

9. You shouldn't agree, because they are equal to one another.

10. 84 cents plus 61 should be $1.45 because 84 + 61 is 145 and 100 cents equals 1 dollar, and then you have 45 left over.

100 - .63 is .37 because the whole painting is equal to 1, or .1, or in this case I used it as 100. The drawing is up to you, but you can just draw a canvas and shade in a little bit more than half but not the full canvas. .37 of the canvas is left.

9. No because 0.70 and 0.7 are the same the only thing you doing is your adding a 0 to 0.7 which makes it 0.7010.145 as a decimal equals 1.4511. idk number 11 srryBut I hope the #9 and 10 helped