If you have 4 cups of icing and if each cupcakes requires 1/6 cup cup icing how many cupcakes will be able to ice

Consider the function f(x)=−2/3x+5 . what is f(1/2) ? enter your answer, as a simplified fraction, in the box. f(1/2)=

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees