The pump price was g dollars per gallon of gasoline yesterday. the price increases by 10 cents per gallon today. if a driver pumps 12.4 gallons of gasoline today, how much does he have to pay?

(12.4g + 1.24) dollars

Step-by-step explanation:

10 cents mean $0.10

Previous day price was "g" dollars and today increased "0.10" dollars

So today's price is "g+0.10" per gallon

So for 12.4 gallons, he has to pay 12.4 multiplied by "g+0.10"

Hence,

dollars

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6