Please help with question C

55% percentage mark up

Step-by-step explanation:

Formula = Gross profit /  Cost of item  * 100    First we find the Cost of item = 39.99 / 06 = 66.65 as 66.65 * 0.60 = 39.99  then we find the Gross profit 66.65 - 29.99 = 36.66 then plug into the formula  36.66/66.65 * 100 =55.0037509% = 55%

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

: )

if i'm not wrong, i would say that the third angle has (72) because the three sides of all triangles have 180 degrees and if we subtract 180 - 62 - 40 = (72) / but i'm not sure about 40 yd.