The equation -3 + 7 = -10 simplifies to a true statement true or false

-3 + 7 = -10
Add 3 to both sides.
7 = -7

This is false, as 7 does not equal -7.

I hope this helps!

Hnmmmn not sure

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post