A hovercraft takes off from a platform. Its height (in meters), xxx seconds after takeoff, is modeled by
h(x)=-(x-11)(x+3)h(x)=−(x−11)(x+3)h , left parenthesis, x, right parenthesis, equals, minus, left parenthesis, x, minus, 11, right parenthesis, left parenthesis, x, plus, 3, right parenthesis
What is the height of the hovercraft at the time of takeoff?
meters

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.

19479 is the answer ^^