Which expression gives the area of the triangle shown below? 8 and 10

I'll assume you mean the base is 8 and the height is 10.  the area of a triangle is , so in this case, the area is .  the area is 40.

The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !