The answer is 2/15 since there are 2 cards that we are interested in and it's out of 15 cards
Answer:

Step-by-step explanation:

3/4 and 2/5 have a common denominator which is twenty so you can rewrite the equation with just knowing that



You can then multiply both sides by twenty to solve this equation.
Hope this helps.
Answer:
B
Step-by-step explanation:
Answer:
I think it is 8! Sorry if it's wrong!
Answer:
C. x = 6.0
Step-by-step explanation:
If you use the Pythagorean Theorem, you'll see that x^2 + 5^2 = 8^2. That'll simplify down to
x^2 + 25 = 64. Then you subtract 25 from 64 and that'll give you 39. You then have to find what √39 is and that is 6.244, so that is 6.0 simplified to the nearest tenth.