Justine enrolls in a music program. the cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson. if the average cost per music lesson is $12 and justine has taken x classes, which equation represents this scenario?

Step-by-step explanation:

Registration fees = $45

Fees per lesson of music = $9

Let x be the number of lessons

So, fees of x lessons = 9x

So, Total fees =

Now we are given that the average cost per music lesson is $12

A.T.Q

Hence the equation represents this scenario is

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

f(x)=4

step-by-step explanation: