<em><u>62.5% in 2 equivalent forms can be 0.625 and also 62.5/100.</u></em> For getting a decimal, move the decimal 2 places to the left. For getting a fraction, just put the percent out of 100.
Hope it helps :)
1.8 is the higher number. The square root of 2 starts with 1.4
The height of the blue spruce was 45.
We find the mean by adding all of the data points and dividing by the number of data points. We will add the unknown value x and change the number we're dividing by to 7:
(160+320+100+110+200+220+x)/7 = 165
(1110+x)/7 = 165
Multiply both sides by 7:
1110 + x = 1155
Subtract 1110 from both sides:
x = 45
Answer:
-8.6363 the proper answer (estimated) is -8.66