You are asked to give advice on how many householders should be polled in order to gauge the support for a tax increase, to within 25% with 99% confidence. a) What sample size would you recommend?
b) If you are told that more than 4/5 householders are likely to support the tax increase, then what sample size would you recommend?

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

there is no picture in order for this question to be answered

answer: 60%

explanation:

÷

= 60%