Select all names that apply.

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А:Irrational
B:real
С:whole
D:integer

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

The area of a circle is equal to 1 dm². find the radius of the circle.