The answer is in the image
Here,
tip=18%of $32
tip=(18/100)*32
=0.18*32
=$5.76
Total payment=32+5.76=$37.76
30% of 420 are first year students
first year students = (30/100 )*420
=126 students
Student who are not in first year = 420-126
=294 students
tip=18% of 75.45
=18/100 * 75.45 = $13.581
Tip = $13.581
Area of rectangle= L*b
here,
L=12.4 cm
b= 8.8 cm
A= L*b
= 12.4 * 8.8 = 109.12 cm^2
The solution is given below
We can put the numbers in ascending order-
36, 38, 39, 39, 40, 47, 48, 51
Range=max-min
=51-36
=15
It will provide an instant answer!