Find the base of the following: 1. 20% of a number is 40
2. 40% of a number is 20
3. 70% of a number is 35
4. 80% of a number is 84
5. 20 is 5% of what number

help me please

Does masterbation affect height growth or loss of growth hormone?

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials