Final answer:
To evaluate the expression rh + t using the given values, substitute h=19, r=6, and t=23.50 into the expression and simplify.
Step-by-step explanation:
To evaluate the expression rh + t, we substitute the given values of h=19, r=6, and t=23.50 into the expression. Plugging in the values, we get:
rh + t = (19 * 6) + 23.50 = 114 + 23.50 = 137.50.
Therefore, the value of the expression rh + t, when h=19, r=6, and t=23.50, is 137.50.