3. Find the orthocentre of the triangle whose angular points are (0, 0), (2, - 1), (- 1, 3). Note. Orthocentre is the point of intersection of the altitudes]

step-by-step explanation:

8.3 and the 3 is repeating

hope this .

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.