After the last ice age began, the number of animal species in Australia changed rapidly. The relationship between the elapsed time, t. in years, since the ice age began, and the total number of
animal species, S(t), is modeled by the following function:

S(t) = 4,200,000 - (0.72)t

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.