At the beginning of the day the stock market goes down 60 1/4 points and stays at this level for most of the day. At the end of the day the stock market goes up 90 1/2 points from the low at the beginning of the day. What is the total change in stock market from the beginning of the day to the end of the day?

30 1/4

Step-by-step explanation:

At the beginning day of the day the stock market goes down to 60 1/4 points

At the end of the day the stock market increased to 90 1/2 points

Therefore the total change in stock market from beginning of the day to end of the day can be calculated as follows

= 90 1/2 - 60 1/4

= 181/2 - 241/4

= 121/4

= 30 1/4

Hence the total change in stock market is 30 1/4

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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