What are the answers to o page 169 pre algebra?

How does internal forces effect the stability of structures? How would you write 71000000000 in scientific notation? Why do you subtract exponents when dividing powers of the same base? Why is 0.25 different from 0.25 percent? Is guess an adverb? What is the LCM of 42 and 70? How many sides does an heptagon has? What is the population of Standard Parking? What are the two square roots of a positive number? What percent is 14 days out of the calendar year? How much larger is a cubic meter than a cubic centimeter? How do you convert 76000 into a scientific notation? What do you mean the greater the knowledge and the freedom the greater voluntarily and therefore the accountability? What is the value of a silver quarter dated 1965? How would I simplify 8y plus 2y plus 3y? What are the fist 500 prime numbers? How many syllables does rainbow have? What are the intercepts of 2x plus 3y-6z equals 30? The length of a rectangle is 2 ft longer than the width If the area is 16 ft2 then what are the length and the width? How much work must be done on a 10-kg bicycle to increase its speed from 5 m s to 10 m s?