A girls name is "Olivia Summers" so her initials are OS. How many people need to be in an auditorium to ensure that at least 4 people in that room have the same pair of initials? Please answer quickly!

Multiply. −2x(6x4−7x2+x−5) express the answer in standard form. enter your answer in the box.

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

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]