With Viagra, the effects last approximately 4 hours. Cialis works a bit faster (within about 15 minutes), and the effects last much longer -- up to 36 hours in some cases. Stendra can start working in as little as 15 minutes and last up to 6 hours.here are only five oral drugs approved by the FDA to treat erectile dysfunction: tadalafil (Cialis), vardenafil (Levitra, Staxyn), avanafil (Stendra), and sildenafil (Viagra). All work by increasing the flow of blood into the penis so that when a man is sexually stimulated, he can get an erection.
ABCmouse.com is subscription based. It is ad-free, pop-up ad free and there are no outside links. Subscription options for ABCmouse.com are 7.95 per month or $79 per year. Up to three children can be on one account at once. In addition, free subscriptions are available to public schools throughout the United States and Canada that apply for the program.
In the following month, ABC produces 5,000 units at a variable cost of $25,000 and the same fixed cost of $30,000. The cost per unit is: ($30,000 Fixed costs + $25,000 variable costs) / 5,000 units = $11/unit.he cost per unit is commonly derived when a company produces a large number of identical products. The cost is derived from the variable costs and fixed costs incurred by a production process, divided by the number of units produced.