Sophie has 9 cards. There is a number on each card.
a
5
4 42
31|15|9|6
Sophie takes at random two of the cards.
She works out the product of the numbers on the two cards.
Work out the probability that the product is an even number.
a marked

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°