Answer:
Only 16 problems correct
Step-by-step explanation:
Well I thought that since 80% is 4/5 then I should do 20 divided by 5 which will get me 4 and since I'm doing 4/5 I should go all the way up to 80% of 20 which will get me 16.
I'm not making that much sense but
Hope this helps :)
b.) 4.2
................
x = 4
x^2 = 4^2 = 16
the answer is y =3/4 or alternate form y = 0.6
