Which of the following are equal to 4^-3/4^-5

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Can someone me with my math problem pls my teacher is on my back about this

Describe how to translate the graph of y=/x to obtain the graph of y=/x+5