Using the cube formula for volume I got V=3.38cm^3
The answer is 42.80 , 2.28 is what they saved and i got the .80 cents because i rounded up from .78
First we need to know what number 2*5*7 gives us. That's the same as 10*7=70. So the question is asking how many multiples of 70 are between 1 and 700. Let's list them:
70
140
210
280
350
420
490
560
630
700
So there are 10 integers from 1 to 700 that are divisible by 2, 5, and 7.
It percent must be a 100%. So if she knows that 72% students choose a mascot, then take 100% subtract 72% you'll get 28%. Which mean the other 28% of the student will choose a Viking as their mascot.