= a^3 +3a^2-7a+4a^2+12a-28
=a^3 +7a^2+5a-28
Micho tito sancho peludo negro y cabezon
First 3/4: this is actually 0.75. but the percent means we have to divide it by 100:
0.0075
3/25 is actually 0.12 (because it's equal to 12/100: i multiplied both numbers by 4)
and if it's a percent, again we "move to "move the point" or in other words divide by a 100:
0.0012 (think of dividing by 10 as of moving the coma to the left and adding zeros if there is noone to move)
the last one is equal to 55/100 (multiplied both by 5), so 11/20 % is 0.0055
I hope this was clear, let me know if you have questions!
Just answer each one to the best of your ability... study the graph and say what’s happening, like so many gallons per hour or something like that
