she needs to put the meal in the oven on or before 6: 55pm.
it is given that jasmine wants to eat at 8: 00pm.
the time she needs to cook her meal = 65 mins.
to find the time she needs to put the meal in the oven, we have to subtract 65 mins from 8: 00pm
65 mins = 1 hour and 5 mins.
so, 1 hour before 8: 00pm is 7: 00pm.
5 mins before 7: 00pm is 6: 55pm.
hence, she needs to put the meal in the oven on or before 6: 55pm so that she can't miss 800pm to eat.
the expression would be 1/9
to do this in the simplest way possible, start by subtracting the exponents since they are being divided.
-6 - (-4) = -2.
so the end result is 3^-2. this can be easily expressed by moving the term to the denominator and making it positive. like this:
then we can eliminate the exponent, leaving us with: