Seven days ago, the gas tank on Rosa's vehicle was filled with 25 gallons of gasoline. Today there are 11 gallons of gasoline.
b. What is the mean (average) change in gasoline in gallons per day?
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17 Seven days ago, the gas tank on Rosa's vehicle was filled with
25 gallons of gasoline. Today there are 11 gallons of gasoline,
c. What is the fuel efficiency, in miles per gallon, of Rosa's car if
she drove 490 miles in the past seven days?

where is the image?

step-by-step explanation:

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column