Put the values of the variables in place of the variables in the expression, then do the arithmetic.

Answer:A. x squared over 16 minus y squared over 4 ...
Step-by-step explanation:
Answer:
13.18651685
13.9
Explain:
890-238=652
652/890=0.7325842697 (Find out the percentage)
We know that 1 gram of Element X will be fully decayed in 18 minutes and half of it in 9 minutes.
0.7325842697x18=13.18651685
As you see 18/13.18651685 will equal to 18 (not exactly since it is rounded)
And of course we need to round it to nearest tenth. So the answer would be 13.9!
very simple it's b. tell me if you need help with anything els
Answer:
Hope this helps!!
Step-by-step explanation:
4 = 48
6 = 72
2
= 30
PLZZ MARK BRAINLIEST