When a calcium atom forms an ion, it loses two electrons. what is the electrical charge of the calcium ion? a. -2 b. -1 c. +1 d. +2

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?