A friend is thinking of a number between 1 and 1,000,000. You can only ask questions that require yes or no answers. What is the minimum number
of questions you must ask to be certain of the number? (hint: use y = ab^x)

you're missing vital information, add to it so we can solve this problem for you.

step-by-step explanation:

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.