Arectangle swimming pool that is 10 ft wide by 16 ft long is surronded by a cement sidewalk of uniform width. if the area of the sidewalk is 155ft^2, what is its widtha. 2.5ftb. 5.0ftc. 6.2ftd. 15.5ft

How do i do this? i don’t understand

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

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.