At which root does the graph of f(x) = (x + 4)6(x + 7,5 cross the x-axis?

sorey ik so sorey i need and need to answer a few

Ibelieve the answer is c i worked it out three times but if my answer is wrong someone correct me

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 !