During a period of extreme cold the average daily temperature dropped decreased by 1.5 degree Feach day. How many days did take for the temperature to decrease by 9 degree F? Which equation would you use to find the solution?
1) x+1.5=9
2) x-1.5 = -9
3) -1.5x=-9
4) 1.5x= 9

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

the answer is 62.8 cubic units