@#$% 7. according to the plate tectonics model, what layer from earth's rigid, mobile plates? a. inner and outer core b. upper and lower mantle c. crust only d. crust and upper mantle < i think d is the answer,

The earth's outermost, rigid layer, the lithosphere, is fragmented into a dozen or more irregularly shaped plates that are riding atop a hotter, more mobile material, the asthenospehere. The tectonic plates are made up of Earth's crust and the upper part of the mantle. The plates fit together like a jigsaw puzzle. The lithospere is subdivided into tectonic plates.

The discount is 8.70 . you dont tell us the percent of tax added so there is no way to find out, unless i'm not seeing anything. without tax its 37.70