Atelephone technician charges $30 per hour plus a $45 service charge your father's firm hires him to hook up his company's phone system. find the total charges if it takes the telephone technician 6.5 hours to complete the task

The total cost is the sum of the hourly rate and the service charge:

The hourly charge is the product of the hourly rate and the total time:

Combining these we have:

Substituting the given values:

The total cost is $240.

find out the value of b

step-by-step explanation:

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!