Johnny barber took golf lessons. his clubs cost $425, balls cost $12.50, shoes cost $49.50, his golf shirt was $37, and his glove was on sale for $19.95. he paid 5% sales tax on his purchase. his lessons cost $20.00 per lesson for 12 lessons. what is the total cost of his purchase and lessons?
a. $811.15
b. $780.70
c. $603.15

The total  cost of the Johnny Barber purchase and lessons is $811.15 .

Option (A) is correct .

Step-by-step explanation:

As given

Johnny Barber took golf lessons.

Johnny Barber clubs cost $425, balls cost $12.50, shoes cost $49.50, his golf shirt was $37, and his glove was on sale for $19.95.

Total purchase cost =  Johnny clubs cost +  Balls cost + Shoes cost + Golf shirt cost + Glove cost

Put all the values in the above

Total purchase cost =  425 +  12.50 + 49.50 + 37 + 19.95

                                 = $ 543.95

As given

Johnny Barber paid 5% sales tax on his purchase.  

5% is written in the decimal form

= 0.05

Thus

Sales tax = 0.05 × Total purchase cost

               = 0.05 × 543.95

               = $ 27.1975

As given

Johnny Barber  lessons cost $20.00 per lesson for 12 lessons.

Total cost of the lesson = 12 × Cost per lesson

                                        = 12 × 20

                                        = $ 240

Thus

Total cost of the Johnny Barber purchase and lessons = Total purchase cost + Sales tax + Total cost of the lessons

Put all the values in the above

Total cost of the Johnny Barber purchase and lessons =  $ 543.95  + $ 27.1975  + $ 240

Total cost of the Johnny Barber purchase and lessons =  $ 811.1475

Total cost of the Johnny Barber purchase and lessons =  $ 811.15 (Approx)  

Therefore the total  cost of the Johnny Barber purchase and lessons is $811.15 .

Option (A) is correct .                                                        

answer: x=60

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5