Me t^t i'm brain dead right now
(fractions t^t i have a test so can you explain how to do a simple fraction multiplication as well) : d

Step-by-step explanation:

multiplying fractions is usually super simple.  You just multiply the top numbers and multiply the bottom numbers.  So 2/3 * 5/7 = (2*5)/(3*7) = 10/21.

Here you have mixed fractions.  For me, the easiest way is to  make them improper fractions and then multiply them.  So 2 and 3/4 becomes 11/4 and 1 and 13/20 becomes 33/20.  Let me know if you don't get that.

Anyway, if we make the unknown fraction x we can rewrite this as an algebraic equation.

(11/4)x = 33/20  Now just multiply both sides by 4 and divide both sides by 11 and you will get

x = 3/5

Again, let me know if there's something you don't understand.  

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

: )