These numbers are very low, for at least my region. Paver patios run about $20.00+ per square foot, higher for upper end pavers. That's patio install only, not including lawn repair, pergolas, columns, seat walls, lights, walls, steps etc... So figuring a flat yard and being able access with machinery. If by hand price goes up.
Aerobic exercise (also known as cardio) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process.
Anaerobic exercise is typically taken to refer to exercises that don't get you breathing hard such as lifting weights, strength training, sprinting, push ups and pull ups. Anaerobics are short quick exercises over a short period of time. (Whereas, 'aerobic' exercise is exercise with oxygen.