Tanya drove 3 1/2 hours and used 1/3 tank of gas.

for how long could tanya drive using 1/2 tank of gas?

enter your answer as a mixed number in simplest form in the box.

it would so much : )

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

What is the cube root of -1,000p^12q3? -10p^4 -10p^4q 10p^4 10p^4q