The answers 1655; 1223 + 615 - 63 - 120 = 1655
A(b - c) = d
ab - ac = d
-ac = -ab + d
ac = ab - d
ac/a = (ab - d)/a
c = (ab - d)/a
Your answer will be A. c = (ab - d)/a. Hope this helps!
A physical property of a solid could be smoth or hard
I'm pretty sure the answer is 2.9 because It's closer to 3 than 2