At a carnival, Rafael bought 9 packs of 16 tickets each. He used 39 of the tickets so far. How many tickets does he have left?

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"