40% of 85 is 34 so 85-34=51
51 is your answer
You do mass divided by density
Ur answer is c.0.10 because 10 is less than all the other answer choices
Step-by-step explanation:
Given,
s=5
t=8
solution,
= 3st² - s²
= 3*5*8² - 5²
= 3*5*64 - 25
= 960 - 25
= 935
