Answer:
35
Step-by-step explanation:

Solving this ^^ would equal t=35.
To evaluate a function at a given input, you have to substitute every occurrence of the variable with that particular value.
So, for the first function, you have

The name of the variable is obviously irrelelvant, so the same goes for the second function:

QR IS 23.8! Just subtract 68.4-44.6. The answer is right because 44.6+23.8=68.4
Answer:
3 and 5
Step-by-step explanation:
factor tree is more appropriate.
Answer:
8/3
Step-by-step explanation: