Suppose that the functions s and t are defined for all real numbers x as follows s(x)=4x+4 t(x)=x-5 write the expressions for (s-t)(x) and (s+t)(x) and evaluate (s*t)(1) (s-t)(x)= (s+t)(x)= (s*t)(1)=

To compute the sum/difference of two function, simply sum/subract their expressions:

Similarly, the multiplication is defined as

To compute , substitute every occurrence of x with 1:

step-by-step explanation:

jjj

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.