Question

1. the temperature in degrees fahrenheit after h hours is given by t(h)=72 - 3h. what is the temperature after 4 hours?

Explanation:

Step1: Substitute h value

Substitute $h = 4$ into $T(h)=72 - 3h$.
$T(4)=72-3\times4$

Step2: Calculate multiplication

First calculate $3\times4$.
$3\times4 = 12$
So $T(4)=72 - 12$

Step3: Calculate subtraction

Calculate $72-12$.
$72-12=60$

Answer:

60