An expression is shown, where a<0 and c>0. a + b = c

FSA question will say:
Drag the two points to the number line to show possible locations of a and b.

Where would you drag the points:
In your answer, state a = _ and b = _

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.