1 1/4 times 5 3/5 whats the answer in fractions

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.