It costs $150 to be a member of a music club. a member of the club pays $5 per music lesson. a nonmember pays $15 per music lesson. how many music lessons must a member and a non member take so the cost for each is the same?

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8