Five friends went to a restaurant and agreed to share the bill equally. however, one person forgot his wallet, so the other four friends' portions of the bill went up by $\$4$ each. how many dollars was the total bill?

5 people but one person forgot money

4 people had to pay 4 $ to cover for the guy, so that would mean one person had to pay 16 $. 16*5 to get the total amount, so the answer would be

80 dollars

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

the first one, all those points on the line just make a strait line.