Answer:
248
Step-by-step explanation:
A + B = 180 -EQ 1
A + C =180 -EQ 2
B =124
BY EQ1 :
A = 180 - 124 =56
C = 180 -56 =124
B + C = 124+124
=248
Density of any object of found by dividing its Mass by its Volume
So firstly we have to find the Volume
Volume of sphere = 
where r is radius
So lets find the Volume
Volume of spherical marble = 
= 
Now mass = 10 grams
So density = Mass/Volume =
rho
≈2.39 rho
<span>All the information we have are the probabilities, and what we need is the lowest number: so let's choose the smallest probability among the numbers: 0.0065%, B 0.0037%,C 0.0108%,D 0.0029%, E 0.0145%. The smallest of the numbers is 0.0029% -it starts with two 00s and the number that follows, 2, is smaller than all there others - so the smallest probability is in option D - and the model would be the corresponding model (but we're missing some information here) </span>