What is the sale price for a object that cost $75 but is on sale for 20% .

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?