Please help!! I’ll mark you as brainliest if correct

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

When is g(x) = 0 for the function g(x) = 5.23x + 4?