Debbie is borrowing 3 books from her friend who has a collection of 45 books. which of the following expressions represents the number of ways debbie can choose a group of 3 books?
a.) p(45, 3)
b) c(45, 3)
c) 45!

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.

Aflagpole broke in a storm. 77 7 meters are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground at a point 2424 24 meters away horizontally