Ahmed has 16 cups of lemonade mix, how many cups of water are needed for the second recipe?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

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]