can someone explain how to find the amplitude, period, midline, and phase shift of this function? i missed a day of math a bit ago and i have a small idea of how to do this but i need help understanding how do to these things. thank you!

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 answers are in the images, i received 100% on this assignment. hope this !

the answer is  

a.

4,624π mm2

step-by-step explanation:

step-by-step explanation: