Find the slope of the line passing through the points (0,0) and (3,-3)

Geometry answer picture question pls . reason and statements

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.

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have