What is a measure of force that is generated by the action of gravity on the mass of an object

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

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The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?