liner funcion a and liner function b both have the same input as shown below why will the output values for liner a

Me figure out the process to determine x you appreciate it : )

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48