Answer:
13
Step-by-step explanation:
3n+1
Let n= 4
3(4)+1
12+1
13
Given:
12 sq.ft of paper @ $1/sq.ft
4 ft of wood @ $3/ft
14 yds of string @ $2/yd
Part A:
total cost for one kite
=12 sq.ft of paper @ $1/sq.ft
4 ft of wood @ $3/ft
14 yds of string @ $2/yd
= 12*$1 + 4*$3 + 14*$2
=$12 + $12 + $28
=$52
Part B:
Total cost for four kites
= 4* cost for one kite
= 4*$52
=$208
Make the equation a little more descriptive
First add the seconds you have 45 +5+10 seconds which equals 60 seconds or 1 minutes. Now add the minutes 9 + 7 + 12 minutes = 28 minutes then add that 1 minutes that you got from the seconds 28 + 1 minute = 29 minutes 7:40 + 20 minutes = 8:00 + 9 minutes = 8:09 am. So Marsha arrived to school at 8:09 am. Comment if you have any questions.