Eric plays an online game called gopher invasion in which gophers emerge from holes in the ground to take over your farm. in the game's first level, eric must fill a certain number of holes with his shovel. eric fills 19 holes before the gophers take over and he loses. there were still 24 holes left to fill in the first level. which equation can be solved for h to find the total number of holes in the first level? a) h 19 = 24 b) h − 19 = 24 c) h + 19 = 24 d) 19h = 24