The ratio of red cars to blue cars in the parking lot was 8:7. If there were 48 red cars, how many blue cars were there?

42 blue cars.

Step-by-step explanation:

8:7 = 48:x

X = 48/8 *7

x = 6*7

x = 42

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.