What’s 4x6+90x109-90x40 I’m giving 28 points

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

See attachment below and find the equivalent of tan(∠qsr)

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]