Question

check please? I circled my answer in the pic! thanks!

Answer 1

correct

Answer 2

@jim_thompson5910

Answer 3

Is there some other picture? Are 15 and D7 on a coordinate plane?

Answer 4

oh that is the wrong pic, omg goodness let me repost ithe right one haha

Answer 5

That's correct for #6. It's C

Answer 6

your positive its not A ? i was torn, but my gut told me C

Answer 7

2x - 4 = 100
+4 +4
------------
2x = 104

You add to get rid of the -4.

Answer 8

ok :)

Answer 9

Since you add, it's the addition property of equality.