Answer:
a) About 48 of the shoppers, that is 
of the shoppers, received a free set of earbuds.
b) About 58 shoppers, that is 
received $5 off their first purchase.
Step-by-step explanation:
a. About how many shoppers received a free set of earbuds?
21% out of 230. So
About 48 of the shoppers, that is of the shoppers, received a free set of earbuds.
b. About how many shoppers received $5 off their first purchase?
25% out of 230, so:
About 58 shoppers, that is received $5 off their first purchase.
I think that 3 rolls is wrong and that 6 rolls is right. If you create a 15 by 15 square and draw two lines through the center that connect to the opposite corner, you'll be able to use the Pythagorean Theorem.
Perimeter: 15+15+15+15=60ft.
Length of Line from Corner to Corner:
(15)(15)+(15)(15)=C^2
225+225=C^2
450=C^2
21.2=C
21.2(2)= 42.4ft.
42.4ft.+60ft.= 102.4ft.
102.4ft. divided by 20ft. = 5.12 = <u>6 rolls</u>
U call it keep change change. keep 15.7. change it to subtract and change -3.45 to just 3.45 (positive not negative)
29kn are equal to cn 2900000
Hope it was right.
