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

Solve by completing the square: x2-10x-8=0.  Report exact answer, no decimals.