Solve this system by solution

9x-3y=-843 and x=10y+3

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Someone me i need with this stuff

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.