1.Joe was digging when Betty came home. "What's going on?" she asked. "I'm making our rectangular bit of lawn one hundred square feet bigger," replied Joe. Betty shook her head. "But you seem to be making it two feet shorter." "Yes, and five feet wider," replied Joe. "I could have got the same extra area by making it a foot longer and two feet wider instead." What had the dimensions been?

Lawn 34 feet by 30 feet

Lawn 36 feet by 32 feet

Lawn 32 feet by 28 feet