Mr. Lopez graded homework from 4:30
to 6:30 on Friday. He
graded from 1:00 to 3:00 on Saturday, and from 12:20 to 2:00 on Sunday. How many total hours did Mr. Lopez spend grading this weekend?

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

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]

Which method of gathering data will be most effective in learning how diet and fitness choices affect long-term healt