The function f(x) = 5x converts a nickels to pennies. Find a function that converts pennies to nickels. Then convert 50 pennies to nickels.
f-1 (x) = x/10. 50 pennies is equivalent to 5 nickels.
f-1(x) = 5/x. 50 pennies is equivalent to 5 nickels.
f-1(x) = x/5. 50 pennies is equivalent to 10 nickels.
f-1(x) = 5/x. 50 pennies is equivalent to 10 nickels.

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

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