The polygons are similar. find the value of x. 21/20=x/20=18/12

Which country is currently the most populated country in the world? a. india b. china c. mongolia d. indonesia

The formation of the planet uranus is estimated to have occurred approximately when?

Acompany produces items in small batches. the machinery needs to warm up before the items can be produced. the scatterplot shows the time needed to produce batches of different numbers of items. based on the line of best fit, which of these statements is true?