Aschool is having a fundraiser. band members are selling coupon books. each book sold will earn them $10. for every 5 books they sell, they'll get $12.50.

a. if they sell 102 books on the first week, how much money did they make?

b. the band members made $1060 on the second week. how much coupon books did they sell?

you already gave the answer

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180