Answer:

Step-by-step explanation:
Solve the value of
:

-Combine
and
by subtracting
by
:


-Subtract
on both sides:


-Multiply both sides by
, the reciprocal of
:



Therefore, the value of
is
.
1 minute = 0.25km
Step-by-step explanation:
divide both numbers that were given by 8. 8÷8 is 1 and 2÷8 is 0.25.
I'm not completely sure but this is what I would do.
evaluate <span>(1/ 4)^x - 1 </span>as is. But change the (1 /2)^2x to (2/4)^2x. This way both fractions have the same denominator and in this sense, the same base. The 2/4 base still evaluates into 1/2 so nothing, mathematically, is being broken here.
A foot is 12 in so a fraction could be 3/12