what is the upper limit of the class interval whose lower limit and class marks are 65 and 67.5 respectively​

class mark = ( up plus LL /2

67.5=( up plus 67) /2

67.5 2=ul plus 65

135= up plus 65

135-65 = up

70= ul

b.-4 units

all you   do is count how many times you move

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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