Please help I have no clue what to do here I understood the other angles but not this

Step-by-step explanation:

x+a= 180

x+ 52= 180

x= 180-52

x= 128°

Its 76!

Step-by-step explanation:

52+52=104

180-104=76

Hope this helps!

Sorry if im wrong, im just leanring this in class too!

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.