Answer: 1/5
Step-by-step explanation: the probability that you get heads on the coin is 1/2 and the probability for getting a vowel out of incredible is 4/10 or simplified 2/5. So you multiply... 1/2 x 2/5 = 1/5
23/4 i swear that’s the answer hope it helps
ANSWER

EXPLANATION
It was given that, Joan has

and she will use

of it to make place cards.
We want to find how felt she will use for place cards.
We just have to find,



Therefore Joan will use

yards of felt for the place cards.
The answer is: -4/a^2 b^2