A family eats at a restaurant. The bill is $38.70. The family leaves a tip and spends $46.44. What percentage of the bill is the tip?

20%

Step-by-step explanation:

First let's find 10% of the bill. 38.7 divided by 10 = $3.87. Now we can add this to the bill until we get the answer or close to it. 38.70 + 3.87 = 42.57 + 3.87 = 46.44. That is the total cost. How many times did we add it? Twice, so we do 10*2=20. The tip was 20% of the bill

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

37 = ending with 7

unit's digit in the cube..3

56 = ending with 6

unit's digit in the cube..2

133 = ending with

unit's digit in the cube..7

hope it : ( : )