Answer:
Marc has 48kg mass
Step-by-step explanation:
16 x 3 = 48
we know that
Using the graph
For
-----> 
For
-----> 
the average rate of change is equal to

therefore
<u>the answer is</u>
the average rate of change is 
The missing factor is (3x-1)
2x=peaches
<span>x=nectarines </span>
<span>2x+x=168</span>
<span>3x=168</span>
<span>x=168/3</span>
<span>x=56
</span>
<span>2(56) = 112 </span>
<span>56 nectarines and 112 peaches</span>