Let h(x)=505.5+8e−0.9x . what is h(5) ? rounded to the nearest tenth. any would be great

For this case, the first thing we are going to do is rewrite the function.
 We have then:
 h (x) = 505.5 + 8 * exp (-0.9 * x)
 We evaluate the value of x = 5 in the function.
 We have then:
 h (5) = 505.5 + 8 * exp (-0.9 * 5)
 h (5) = 505.588872
 round to the nearest tenth:
 h (5) = 505.6
 
 the value of h (5) is:
 h (5) = 505.6