In the center of the largest continent, you find a very soft (soft enough to scratch with a fingernail), translucent mineral (sample 6). Visual Description A single transparent to translucent crystal fragment. The crystal is irregular in shape and roughly rectangular overall, with jagged, broken edges and stepped/planar surfaces that intersect at sharp angles, producing a blocky, layered appearance.  

According to what you know about samples 7–9 and sedimentary depositional environments, which is the most accurate description of the change in the landscape over time during this sequence? Tip: Use the principle of superposition.

Divide and simplify:  4+5i6-7i. Write answer with fractions or integers (no decimals), and in the form a + bi.

Find the zeroes of: g(x)=x4-3×3-70×2.  

Solve: 3×2+5=6x

Solve: 3x-2=8

Solve: 3m2+147=0

Solve: 2x-5≥4.  Report in set-builder or interval notation.

Solve: x2-2x+7=0. Report exact answers (no decimals); simplify.

Solve: 7p-48p+5=0