In July 2020, the exchange rate for British pounds sterling was £1 = $1.28
In July 2020, the average price of gasoline in Hong Kong was £1.76 per liter.
How much is this in dollars per gallon?
(Recall that 1 gal = 3.785 L)

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?