A shirt is on sale for 30% off the original purchase price (p). Four different people wrote an expression to find the sale price. Which of the people is incorrect? A. Lenore: p -.30p
B. Jason: 1.30p
C. Sarah: 0.70p
D. Austin: p (1 -.30)

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

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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