What is the answer to 4 1/3 + 1 1/5

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)