Somebody link me a video on how to do proofs

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Aline passes through 3,7 and 6,9 what equation represents the line

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.