Sarah and joe are seeking to join a gym. sarah saw on television that great gym is offering membership at $19.50 per month, plus a one-time registration
fee of $59. joe plans to join workout world because workout world only charges $9.50 per month, plus a one-time registration fee of $149.

3. if sarah decides to join great gym and joe joins workout world, who would pay less during the first month of membership? show your work.