B. pamela drove her car 99 kilometers and used 9 liters of gasoline. how many kilometers can you drive with 12 liters of gasoline?

132 kilometers

Step-by-step explanation:

Given : Pamela drove her car 99 kilometers and used 9 liters of gasoline.

i.e. the distance traveled by car in 9 liters of gasoline = 99 Kilometers

By using the unitary method, the distance traveled by car in 1 liter of gasoline =

Then, the distance traveled by car in 12 liters of gasoline =

Hence, the you can drive 132 kilometers in 12 liters of gasoline.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.