Trey has answered 15 e-mails. this is 20% of e-mails he must answer. how many e-mails does he need to answer? pls

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?