Answer:
n = 84
Step-by-step explanation:
18 + 3 = 21, so that means the quotient of the number and 4 is 21.
21 * 4 = 84
CHECK:
84 / 4 = 21
21 - 3 = 18
33
33/40 =.825 x100 =82.5%
there you go mya hope this helped
75+[(75*4)/100]=75+3=78