Jake used integers to record his costs and earnings from selling homemade muffins he spent $16 on ingredients he earned $125 from selling the muffins

Sorry that it's late, but here's the answer for people in the future that need help. -16 and 125.

Step-by-step explanation:

I got it right. Here's a picture.

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.