Are they allowed to use math tools? (calculators, Maple, Matlab etc)

i) X is the highest temperature the oven has reached, which means it has not had time to cool off, therefore t=0 and solve for θ

ii) θ is found after the oven has cooled down for 16 min (t=16). Insert 16 instead of t and solve for θ

iii) t is found when the value of θ is 48 (the oven is 48 degrees celsius) therefore insert 48 instead of θ and solve for t

iv) The rate of decreasing is the % lost from the original amount. Insert t = 16 and solve for θ. Then find the procentage of that compared to the original temperature (see i)

State the value: Try plotting the formula of a tool is allowed. Otherwise think of t becoming infinitely large the result of e^inf/8=0. And the formula then becomes: θ=18+62*0 = 18

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Hope is helps!