Alguien me ayuda con esto? Es urgente:(

Which value of c would make he following expression completely factored? 8x+cy

What is the radical expression that is equivalent to the expression 27 1 over 5?

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?