Multiply (5x + 3) by (2x + 6) using the box method.

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

Can someone plz me understand how to do these. plz, show work.in exercises 1-4, rewrite the expression in rational exponent form.[tex]\sqrt[4]{625} \sqrt[3]{512} (\sqrt[5]{4} )³ (\sqrt[4]{15} )^{7}\\ (\sqrt[3]{27} )^{2}[/tex]

Will mark brainliest! ( explain the answer too, it can be one sentence)