Please help me
I don’t know what to do for this and it’s really confusing

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28