John called a plumber to fix a leak in his bathroom. The plumber charged $30 to come to the house and $25 an hour while fixing the leak. If the final bill was $105, how many hours was the plumber at John's house?

3 hours

Step-by-step explanation:

We know that $30 of the $105 bill was just to come to the house, leaving $75 of the bill due to the hours spent.  Since the rate per hour is $25/hour, that means 75/25 = 3 hours were spent at the house

105

Step-by-step explanation:

25 + 25 + 25 + 30 = 105 so the three 25$ are the hours so three hours plus the fee of the plumber going there

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.