Roy's car gets an average gas mileage of 29 mi/gal. Roy starts his trip with the amount of gas shown. About how many gallons of gas are left at the end of his trip?
12 gal———140———x gal
A 6 gal
B 7 gal
C 8 gal
D 9 gal

Ineed to know the answer to this algebra question.

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

If log(a) = 1.2 and log(b)= 5.6, what is log(a/b)? a. 4.4b. 6.8c. not enough informationd. -4.4